Free Bet Codes
There are many ways that bookies credit new account holders with free bets with one of them being free bet codes. Basically a free bet code is a code that an online bookie emails you once you've registered a new account and placed a qualifying bet.
This activates your account and once the bet's settled, you get a code for a free bet.
Using Free Bet Codes
This free bet code or free bet voucher can then be used on your bookies site and once entered (usually in the 'promo code' section), your account is credited with a free bet. This free bet can be used on any of the markets a bookie offers although some impose restrictions.
It's easy to claim and then use more than one free bet code, just remember that you're more than likely going to be restricted to one free bet code per online bookie.
Some online bookies run promotions which also dish out free bet codes but they're usually limited to new account holders. Claim free bet codes from all of the online bookies listed below and you're looking at over £600 in bonus funds to go betting with!