A buyer returned an item 21 days after they had received it yet did not inform paypal, ebay or seller (no tracking # no return process through ebay). Seller agreed to refund and waited 2 weeks and heard nothing. eBay states the buyer has 6 days to return after agreement to refund. I am the buyer. What are my rights? I returned an item and seller is saying they never got it. Will ebay step in and help?