Hello witzend665,
Welcome! It sounds like the email address you have registered to your eBay does not match what is registered on PayPal. The email address may have been misspelled in the payments section of your eBay listing or it could be a different email address.
You can check this by clicking the "Relist" link for that item and look in the payments section for the PayPal email address which is listed.
If this is an email address that you have access to, you can login to your PayPal account, and add the email address. Once you add and confirm the email address, the payment should populate into your PayPal account.
If you do not have access to the email address, you will need to ask the buyer to cancel the payment, and resend to your correct email address.
If this is the case, you can actually just send your buyer a money request right from your PayPal account.
Here are the instructions for sending out a money request:
Log in to your PayPal account.
Click Request Money.
Click Create a money request or Create an invoice.
Enter the required information.
Click Continue.
Review the information and click Request Money or Send invoice.
Hope this helps!
Lilly
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