I booked room hire for an event I've had to cancel. We've given the venue a week's notice. They are trying to charge 25% of the cost. There were no written booking conditions or other indication of a charge. It was all done by email. It isn't an organisation which makes their money from events, just someone who rents out a meeting room when not in use.
Do they have a leg to stand on introducing this charge after the fact? I'm thinking not but obviously am concerned!