Fact is if you recieved $200 for the seat including shipping, you scammed him. You recieved $110 for the seat that was yours to do with what you want.What gives you the right to not ship the seat with HIS $90 if thats what it cost. The is NO EXCUSE that is BS. If you feel your reasoning is acceptable you are way off base. YOU SIR ARE A CROOKED SCAMMING THIEF plain and simple. Send him HIS seat....