Glad you got your money back .... good deal.
I just had one related to a "new " amp ... that I notice enlarging the pic a "B" at the end of model number. Never seen that on one before. Asked about it, and they danced all around about it. What they didn't know I was a checked the manufacturer, and it's a factory 2nd if it has the "B", and that is what the seller was not wanting to disclose to anyone. Then he wouldn't get the type of money he was wanting for it. Bought one "new" thru a shop here, and ended up it had a rebate as well, so ended up with a much better deal. Any hesitation to answer a question , or an answer that is not direct and to the point, I move on and avoid them.