I have just placed my £5 bet and my free £20 bet but I received another bet £10 get £40 from racing post,should I use it and do I have to bet the £40 on different races or can I do it on one and can I only use it on horse racing because I clicked on a random football game and it was telling me I could use the free £40 bet but it was split into 4 £10 bets