I always used Paypal as its ment to have (Protection) don't belief it!! If the seller is on the make & is out to rip off people Paypal have no power of recovery, they are so slow by time they conclude the obvious in my case over 2 months the Rouge trader had long gone. As for returning the item back to seller, if they decide to fail to accept it & it comes back to you as it obviously would, you can't have both the item & a refund!!
Paypal state (they) give you protection, a load of crap, only if the seller is willing to refund!