William Hill is currently considered to be one of the most reliable bookmakers that you can find online. They have been around for a long time and were founded back in 1934.
They are operating one of the Best Free Bets currently online. New customers can Bet £10 and get a £20 Free Bet to use on sports.
Register with William Hill using the promotional code (F20) and make a £10 bet at odds greater than 1/5 (1.2). William Hill will then credit your account with 2x £10 Free Bets Completely Free! This free bet offer is for new customers creating a new account at William Hill only.
The William Hill Free bet must be used within 30 days of receiving it. – Terms and Conditions Apply!