This is for new William Hill customers. You have to place a £10 bet to have £20 credited to your account, which can be used as two £10 bets.
There are conditions about where you can place the initial bet eg the odds must be greater than 1/2 and you need to use promo code F20
There also seems to be a club offer which gives you a free £5 bet every week.
I don't know much about this type of betting ..a friend said it was a good deal... so please check the details carefully before signing up... feel free to post any corrections.
I hope you all win (there maybe some cashback available) ..good luck Jane