I have a large cheque from an insurance company, but I am disputing it (it should be larger). The whole think is going to the Ombudsman. In the meantime what should I do with the cheque? If - and it's possible - the Ombudsman don;t find in my favour I don;t want to find the cheque is no longer valid and I'm screwed. The cheque is for all my premiums as they are declaring the policy null and void. If I cash it it looks like I am accepting this. any advice?