eBay

hello i have a problem with an eBay buyer , he said in the case he's not receive the item yet i have already sent his item then he he request refund I don't understand how He got a refund for his money And the item still with him.Here is the tracking...

Please help me, i try to paid my ebay fees by mastercard but didn't accept what should ido

please help me i want to pay fees by mastercard but it didn't accepted what should i do