So I sold a Coach Legacy to this woman, shipped it USPS with a delivery confirmation, she declined insurance, so I didn't get it. Now she is disputing Paypal saying she never received it. The delivery confirmation says she did. Now my paypal account is frozen and I need to make a payment to another seller. What do I do? I posted a message back saying that I shipped the bag and that its delivery had been confirmed. Am I just stuck now?