Gazundered! What a great word.
But my goodness, buyers don't have to put down a deposit in the UK? How amazing.
pennyB - I agree with the others. There is a very inethical bully in your scenario and it's not you. Good luck.
Similarly I do not allow another inspection to have taken place before my offer curfew expires.
How do you manage that?
If I was a vendor I wouldn't allow a prospective buyer to dictate to me if another inspection was to take place by a different party.