I am absolutely appalled that you have been treated in the way that you have by the promoter he has no right whatsoever to question you directly what your intentions are with regard to the request for a booking to host a party, if he was concerned he should have had discussions with the owner of the Box , and the owner could have had a reasonable discussion with you and highlighted to the prompter that it was in fact a one off and that nobody was trying to pinch his cash cow.
I am really quite angry at Vinny and so glad I have not accepted his friend request , this is outright BULLYING ! and it should be stamped out ! and I will tell him to his face like others should to bloody well lay off and do one as we say in Manchester