I bought a brand name item on ebay. It was a no name knockoff. Seller agreed to take a return and emailed a shipping label. The label looked good on the monitor but the printed version is fussy and UPS will not accept the package with a bad label.
Ebay does not seem to have anyway to contact them all the links to complain lead to little pages of information about how to return stuff but no way to actually contact them.
I used Paypal so I guess I have to cancel payment that way.