would ebay try to stop the cheater sellers ?

[tobiasd4]

Buyers are covered by ebay MBG if there is a problem.

[red_magpie]

You need to explain what the problem is, please.

[loyalwhite2000]

I bought the robot vacuum cleaner, in the box it has a warranty card, but
it can not be registered if you buy in eBay, the seller knew that but he
sold ,