"I tried to work a deal with the buyer but he wasn't willing to budge so we couldn't work it out and he gave me a negative feedback."
So.. let me get this straight...You tried to work "a deal" with the buyer to get him to pay more for the item that he had legitimately won in an auction? And now you are trying to get top dollar+ from collectors here. I dare say you have sullied your selling reputation on both counts.
