First you need to update your new address/vital info for any billing (as in banking statements, credit card statements...). Once you have that done, you will need to log into your PayPal Account and update your Account Profile; make any address changes required. You will need to make sure your new address is confirmed, this is important, this means PayPal has confirmed your payment address (debit card, credit card, or bank account) match the address you've provided to PayPal. Ebay states that a seller should not make changes to any transactions after the purchase is completed, it's considered fraud and you could be held responsible if the seller wants to pursue a legal claim against you!
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