After arriving back at the club (Member for over 7 years and done all my training with) via road, the owner told me they would collect the aircraft the next day, so I paid for the flying hours I did on the aircraft that day.
The OP isn't doubting that he should pay - just querying the amount. I don't see any suggest here that he dumped the problem on somebody else. If you are going to charge somebody for a service, do you not have a responsiblity to expalin what the charges are likely to be, and maybe make the offer that they might prefer to sort it out for themselves?