"I think I will also contact the buyer and give them a chance to
explain. I've had some crazy returns before where the buyer made a
mistake and perhaps this is a case of it." This is the best first step.
It happens. First thing I would do is contact the buyer and let them
know what happened, apologize, and tell them you are going to cancel the
transaction. Communication is key to avoiding the negative. If you do
get a neg, respond professionally, and...
FWIW, a seller with 1 feedback selling $900 Nikes is a ripe target for
scammers. I'd suggest you build up your feedback with some buying and
selling of cheaper items before diving into high ticket items like this.
And yes, those offers are definitely...
Not only is that not a Gibson, it's not even a copy of a Gibson guitar.
Most likely a cheap Asian Fender Stratocaster copy. Probably not what
you wanted to hear, but not really worth much.