I don’t get it. You ordered from a foreign seller, known to be overseas. You deliberately ordered replica products. You changed your mind midstream.
I can’t cancel Amazon if it’s shipped. Monoprice same. I recently ordered a $650 replica amplifier, came within 7 days, was well reviewed and many had sold.
Caveat emptor. But to blame the vendor for not allowing themselves to be subject to the whim of a global market ignores why you are using that marketplace.