Ebay is one of the online shopping website where all kind of imported and exported products are sold, so you have to be careful what you are looking for and what your a actually buying and most importently PLEASE READ THE DESCRIPTIONS VERY CAREFULLY before make any kind of purchase. You will get the whole product descriptions in the section. Few of the sellers accept returns and few are not, those are covered by ebay garunty covered on those products. Now about the refund policy , so ebay dose not take all there products return for those products they refund the amount or give the customer a GIFT VOUCHER of the amount . Also be careful when you are buying a product is it under seller warrenty or manufacture warrenty it should writen in the description .
So be smart buy safe get peace of mind .