Best casino bonuses in the UK are casino bonuses that you can convert to cash. For most online casino bonuses in the UK, you have to meet the wagering requirements before converting your bonus rewards to cash and withdrawing them into your bank account. Some casinos place their wagering requirements at 20x, 30x, or even 50x of the amount they gave you as a reward. This implies that before converting your free spin or bonus into cash, you have to win up to 20x, 30x, or 40x of the value you received. After you have won games up to the set wagering requirements, you can then withdraw your cash.