Is he claiming the pump is counterfeit?
Who cares where the pump is made, if it's not counterfeit then its a royal exclusive pump that has an already set price point. The agreed upon sale price was paid and the pump was delivered.
All this other stuff after the fact is just noise. What the buyers true motives are can only be speculated but I don’t think it has anything to do with where it's made and more about trying to renege after the sale was final.
PayPal should only intervene if there was a clear case of fraud, which I don't see.
If the pump didn't work, if there were defects that weren't disclosed is one thing but demanding a refund based on what the buyer says just doesn't add up.
This is a private transaction with all sales final.
I trust the PayPal agent has some brains behind them and not some pimple popping adolescent with a power complex because to me this is cut and dry.
The buyers complaint (if true) is rooted in ignorance and is a hang up he has to wrestle with on his own with regard to manufacturers ethics on where they decide to have their pumps made. None of that should distract from the fact that it is truly a royal exclusive pump and with it the reputation that justifies the sale price.