I think part of your problem is you waited to long to call. I am on the phone after 15 days to insure that they recieved the invoice and everything looks ok. Then they get a follow up call on the 29th day in which I always mention how broke I am and I always place it on someone else(my supply house is threating to cut me off, i.e.). What ever you do don't let of the gas. $900 dollars is alot of dough. If he dosen't answer your phone calls show up at his house.
