20-01-2021 11:17 PM
The buyer will only be able to pay via ebay to the payment email address on the listing. If the old address is still valid if you add it onto your current Paypal account (you can have up to 8 on there) and confirm it the payment will come through. Paypal account > click on the cog icon, top right > Email
If not you can cancel the transaction with buyer's agreement (via More Actions, right of item on sold page > Cancel > Buyer asked to cancel) and relist with the correct email address on the listing for them to buy again.