They have an atypical system for a Crypto.
Try this,
1) Deposit £50 into the sportsbook account.
2) Log in to the casino.
3) the £50 will transfer automatically, and the £50 bonus will appear. While you say you were not after this, it seems that to get the monthly bonuses you have to have ALL bonuses, or register for NO bonuses at all.
4) Log out of the casino (unless you want to play). The £50 is transferred back to the sportsbook where you can still make sports bets or play in the instant games. The £50 remains ringfenced for play in the casino.
The downside is that NO WITHDRAWAL can be made until you have played out the WR for the £50 casino bonus in the casino. The same would be true though for the monthly.
5) When you log on to the casino again, your sportbook balance will be transferred again. With the SUB it would be wise to allow transfer of everything, despite the fact that you will spot an obvious advantage play.
WARNING - the "obvious advantage play" is not quite what it seems, as zeroing out does NOT clear the WR, and you will STILL be unable to withdraw from the sportsbook till you have deposited again to the casino and have the "turn requirement" indicate £0.00.
6) For the monthlies, you do not actually have to deposit another £25 to your sportsbook account, as transferring existing credit into the casino counts as a "chip purchase" for bonus purposes.
7) The only credible way to really "abuse" the willhill casino bonus is to place a single big bet on Blackjack, and grind out on Blackjack if you win. This can be repeated on each of the monthlies by ensuring only £25 remains in the sportsbook account into the new bonus month. They are on the lookout for this one, and it seems players are getting banned, and some are having winnings seized. It is a valid play, however it is +EV forever, so don't expect to get away with it.
8) KK is not banned because he knows how not to get caught by such obvious plays, yet still turns a modest profit over time (not quite so modest at WillHill it seems
) - see his site for more details on his strategy.
9) There is a bug in the casino cashier as follows:-
If your willhill account is in pounds and you are from the UK you will have probably joined through "willhill.co.uk". Unfortunately, the casino cashier button attempts to pass you to banking at "willhill.com", and the bug first appears because you are asked to re-enter your password. it wont work, and you will be bounced to a full logon screen asking for account name & password. Again, this wont work and it will seem you have no account
Forget about asking CS for help, just go to the browser address field at the first "bug" screen asking for just the password. Change "com" to "co.uk" and press "go", you will then be on the site that recognises your account. Entering your password will now log you in.
10) There is ANOTHER bug in the casino launch process. Occasionally, the casino will launch, but fail to initiate chip transfer. You will think your money has vanished
It hasn't - just exit the casino, wait a while, and try again. The bug usually clears, and you will get the transfer screen asking how many chips to transfer.
While this may have helped advantage players, had CS been better with this player to start with, this question would not have been raised, and this lengthy guide to the quirks of the willhill casino that CS don't have a clue about would have not been necessary.