A bet that qualifies will be between £5 and £25, but £5 is the absolute minimum. Remember that the odds need to be 2 or more in order to qualify. You will get the free bet whenever your qualifying bet becomes settled. You will be able to access the free bet from your account, in the free bonuses area.
If you do win anything from the free bet, you will be able to keep the money, although the bet on its own can’t be cashed out. At the same time, you will not be able to use the free bet in order to shake tote bets, lottery or pool. Not only that, but you are entitled to a single bet per IP.
Your free bet cannot be exchanged for cash and because of some abuses, there are some countries whose residents cannot participate in this promotional offer.