How do I get a William Hill Free Bet bonus for new customers? Free-Promo-Codes.co.uk provide all the best promotions currently available from William Hill complete with an instructional help guide to ensure your welcome free bet bonus. Choose your preferred promo code and follow the link on page. At the William Hill promotions page, click the "Join Now" button. Complete your registration details including username, address, password etc. Enter the promo code highlighted at Free_Promo-Codes.co.uk. Click to "Create My Account" to complete the registration process. Deposit to activate the promotion code. Free bets will be available once your first bet has been placed. This promotion is available when you register a new account using the William Hill promo code by clicking the promotion links on page at the William Hill Free Promo Codes page. Once registered at William Hill simply place your bet on any sports with a deposit and with single/cumulative odds and your free bets will credited to your new account.