• 18+. Not available to UK players. Time restrictions apply. In-game opt in required. €4,000,000 prize pool divided into daily and weekly tournaments until 17th November. Select slots only. Full T&Cs Apply. Play Responsibly. gamblingtherapy.org.
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  • Trick or Treat?
    18+. Not available for players with a German or UK account. Time restrictions apply. Opt in required. Minimum deposit required. Available only on Age of Gods: God of Storms. Play Responsibly. gamblingtherapy.org. T&Cs apply.
  • 18+. Not available to UK players. Time restrictions apply. In-game opt in required. €4,000,000 prize pool divided into daily and weekly tournaments until 17th November. Select slots only. Full T&Cs Apply. Play Responsibly. gamblingtherapy.org.
  • 18+ | New Casino customers only. Opt in required. Min deposit €10. Max Total bonus €1,000. Max Total Free Spins 120 on Epic Ape. 40x wagering requirement. Bonus expires 7 days from issue. Play Responsibly | Gamblingtherapy.org | Full Terms & Conditions apply.
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Online Casino Game Rules

Mr Cash Back

5-Reel, 15-Line SlotFree Game & Gamble Feature

5-Reel 15-Line Slots

Welcome to the online slot that gives you exactly what you want – lots of cash back! Mr Cashback slot is full of great ways to win, including a Free Games Bonus. But the best part is, if you have a payline that hasn’t won in a while, Mr Cash Back will give you 50x your Line Bet back! Play Mr Cashback at William Hill Casino now!

The aim of the base game in Mr Cashback slot is to spin the reels and match symbols on the paylines. Mr Cashback is a popular choice at William Hill Casino, joining the likes of online roulette and blackjack as a player favourite.

To Play the Game:

  • Start by choosing the value of your coin. Do this by selecting the Click to Change button on the bottom left of the screen. Next you must select the Line Bet. Click on the Bet per Line button on the bottom centre of the screen. Each time you click on this button another coin will be added to the Line Bet. A maximum of 10 coins can be bet in this way, if you wish to increase the bet you must increase the coin size. Keep clicking on Bet per Line button to rest the number of coins to zero if you wish to start again.
  • Finally you must choose the number of paylines you wish to play, choose from between 1 and 15 paylines. Do this by clicking on the Lines button on the bottom centre of the screen. When you actively click on the Lines button you will view the shapes of the paylines as they appear on the reels. You can also select paylines by choosing from one of the numbers 1-15 on the sides of the reels. Please be aware that choosing any number in this way will also activate all paylines numerically below it, for example, choosing 13 will activate paylines 1-12 as well.
  • The Total Bet for each spin is calculated as the Number of Lines x Line Bet. The Total Bet is the amount deducted from your balance for each spin.
  • When you have selected your bets and paylines, press the Spin button to spin the reels and start playing the Mr Cashback slot. You can also play the slot by pressing the Bet Max button; this will spin the reels at the maximum number of paylines (15) at your selected Line Bet.
  • If you wish, you can use the Auto Start function to spin the reels for you. This function allows you to set a predetermined number of spins to be played through consecutively without player input. Use the +/- buttons above the Auto Start button to set the number of Auto Spins you wish to play, then press Auto Start. Your spins will play through automatically until a Bonus Feature is awarded or you select the Stop button, which replaces the Auto Start button.
  • When the reels have come to rest after a spin, any winning combinations will be clearly highlighted on the reels. The win amount will be shown in the Win Field, located just above the Spin button.
  • All winning combinations and their values are displayed in the Paytable, which can be accessed by selecting the Info button from the bottom left of the reels. For a Line Win (matching symbols on a payline), multiply the figure displayed in the Paytable by the Line Bet. For a Scatter Win, multiply the corresponding figure in the Paytable by the Total Bet.
  • Only the highest win is paid on each individual payline. Multiple wins can occur on different paylines (along with Scatter Wins), these are added together and paid as a Total Win.
  • After any winning combination occurs, you will be given the chance to use the Gamble Feature to increase your winnings. This will be discussed in greater detail below.

Info Page:

If you click on the Info button, which is located on the bottom left of the screen, you will be able to view the Mr Cashback slot Info Pages. You can move through the different pages by using the arrows on the bottom right of the screen. To exit and return to the reels, press the Back button. The different Info Pages are as follows:

Paytable – displays basic information and gives the values of all winning combinations and their values. You can also load a graphic of all the paylines as they appear on the reels. To do this select the Show Paylines button on bottom centre of the screen.

Free Games – describes all the aspects of the Free Games Bonus, how it is awarded, the rules etc.

Mr Cashback Feature – gives information on the Mr Cashback Bonus Feature.

Gamble – describes the rules of the Gamble Feature.


Paylines are the paths that matching symbols must travel across the reels to produce a Line Win. You can view the paylines as they appear on the reels by actively clicking the Lines button. You can also load a graphic of the paylines from the Paytable screen.

Line Wins can only occur on active paylines. Scatter Wins do not need to be on any particular payline. These will be discussed in more detail below.

Please note: there is a clear difference between the Line Bet and the Total Bet. The Line Bet is the individual wager on each payline, i.e. coin size x number of coins. The Total Bet is the Total amount wagered on all lines, i.e. Line Bet x Number of Lines. The Total Bet is the amount it costs you for a spin on Mr Cashback slot.

About Payouts:

All winning combinations and their values are displayed in the Paytable. For a Line Win, multiply the figure in the Paytable by the Line Bet. For a Scatter Win, multiply the figure in the Paytable by the Total Bet.

It is possible that two Line Wins can occur on the same payline; when this occurs you will be paid for whichever holds the higher value.

All Line Wins must begin on reel 1, and follow an unbroken chain of at least three symbols on a payline. Scatter Symbols do not need to be on any payline to be active.

Mr Cashback Feature:

The Mr Cashback Feature is always active during the base game. The basic premise is that you will be paid 50x your Line Bet for every payline that has not registered a win in 50 spins. A small timer can be viewed beside each numbered payline on the sides of the reels. The timers will progressively turn from green to red the closer each payline gets to reaching 50 spins without a win.

If you disable certain paylines it will not count towards the 50 spins without a win. However, when you activate the paylines again the software will remember the previous level before you disabled them.  If you change the Line Bet for a payline the timer will reset to zero for this particular payline.

When a 50th spin without a win occurs Mr Cashback will appear on the centre reel and award you 50x the Line Bet.  If there is more than one payline that has had 50 spins without a win, you will be paid 50x the Line Bet for each payline.

You can use your cursor to hover over the timer to see how many spins remain until potentially activating the Mr Cashback Feature.

Wild Symbol:

The Wild Symbol – represented by Mr Cashback – can substitute for all other standard symbols to help form winning combinations. The Wild Symbol does not substitute for the Bonus Scatter Symbol.

The Wild Symbol can also form its own standalone Line Win made up of Wild Symbols uniquely. When this occurs there is a possibility that two wins will occur on the same payline, the standalone Wild Symbol win and a Line Win that mixes the Wild Symbols with standard symbols; when this occurs you will be paid for whichever has the higher value.

The standard Wild Symbols do not appear during Free Games. However, special Freezing Wilds are active during Free Games.

Scatter Symbol:

The Scatter Symbol – represented by the Mr Cashback Logo – does not need to fall on any payline to be considered active. If you land three or more Scatter Symbols anywhere on the reels you will win a cash amount. To calculate this amount, multiply the figure in the Paytable by the Total Bet.

When you land three of more Scatter Symbols anywhere on the reels you will also be awarded the Free Games Bonus.

The Scatter Symbol is not present during the Free Games Bonus, i.e. it cannot be retriggered during Free Games.

Free Games:

If you land three or more Scatter Symbols anywhere on the reels you will be awarded the Free Games Bonus. When this occurs:

  • You will be prompted to select Click to Start to begin the Bonus.
  • You will be awarded 12 Free Games with an enhanced reel set. The Free Games will play through automatically.
  • All wins gained during Free Games are subject to a 2x multiplier.
  • On the top right of the screen a display will show the total amount currently won during Free Games. The top left of the screen will display the remaining Free Games and the Win Multiplier.
  • During Free Games, special Freezing Wild Symbol can appear randomly on the reels. These will remain in place for between 1 and 4 spins. The Freezing Wilds work in the same way as in the base game, i.e. substitute for other symbols. New Freezing Wild Symbols do not appear above the current ones.
  • The standard Wild Symbols are not present during Free Games. The Scatter Symbol is also removed; therefore the Free Games Bonus cannot be retriggered.
  • All Line Bets and paylines are the same as the triggering spin. This cannot be adjusted.
  • The Bonus will end when all 12 Free Games have been played. A summary screen will appear detailing how much was won during Free Spins and the triggering spin.
  • Press Continue to return to the reels.

Please Note: if the Free Games Bonus has been triggered during Auto Start mode, the slot will wait for you to act before starting Free Games. Press Click to Continue to begin the Free Games Bonus. When the Bonus has ended, Auto Play will resume once you have selected Continue.


Mr Cash Back slot also offers a Gamble Feature. After any win you will see the Gamble button flash, select it if you wish to gamble your winnings. During the Gamble Feature:

  • You will be taken to a new screen. The screen will show a Red button, Black button and a card face down.  You will be prompted to choose Red, Black or Collect.
  • When you have made your choice the card will be revealed. If you have guessed correctly your winnings will be doubled. If you have guessed incorrectly your winnings will be forfeit.
  • Press Collect if you want to bank your winnings and exit the Gamble Feature.

Please Note: the Gamble Feature is not active during Auto Start play and Free Games.

Return to Player:

The average player returns (RTP) for Mr Cashback online slot is 95.37%.


Mr Cashback slot is played with the following buttons:

Click To Change – opens a menu offering a range of coin values for the Line Bet.

Info – launches the Info Pages, including the Paytable and information on special features.

+/- Auto Start – set the number of Auto Spins. Press Auto Start to begin and Stop to end.

Lines – activates paylines. Each time you click the button another payline will become active for the next spin.

Bet Per Line – increases the Line Bet. Each click will add another coin to the bet on each payline.

Bet Max – spins the reels with the maximum number of paylines (15) and maximum number of coins (10).

Gamble – launches the Gamble Feature after a winning spin.

Spin – spins the reels with your specific bet selections.

Casino Toolbar:

You can find general tools and displays on the Casino Toolbar, located on the upper and lower edges of the screen. These features are described below:

Game Balance – displays your current cash balance at the casino.

Cashier – click to open the main banking menu. The Cashier can be used for depositing and withdrawing funds. You can also access banking history options.

Play for Real Money – press to play Mr Cashback slot for real money at William Hill Casino. This is only applicable if you are playing the game in Fun Mode.

Menu – select to access the following tools and options:

  • History – see the results of previous spins.
  • Options – change the game’s general settings, including graphics and sounds.
  • Help – load this rules guide.
  • Online Support – get online customer service.

Close – click to end the game session and go back to the casino lobby.

Quick Deposit – add funds to your account using your preferred deposit methods. A list of quick deposit options can appear in a pop up window if your balance drops below a certain level.

Gadget Bar – choose a gadget (if they are enabled) from the menu on the right of the screen. These can include mini casino games, or information on casino promos and bonus offers from William Hill.

Note on Disconnections:

If your internet connection breaks when playing a spin in the main game, the spin will be automatically completed. You can see the results by accessing History when you reconnect to the internet again. The same rule applies for Auto Play, with only the next spin completed. In all cases, winnings will be paid into your balance.

If your internet connection breaks during the Free Games Feature, you will be redirected back to Mr Cashback slot when you log into the casino again. Previous wins will be paid, Wild Symbols restored and you can continue playing from where you left off.

If your internet connection breaks when playing the Gamble Feature, your winnings will be automatically collected and paid into your balance.

Note on Malfunctions:

A malfunction will void all bets.

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Progressive Jackpot Rules

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Live Casino Game Rules

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