iming is important
There's a limited time during which you can close a case and get a credit for certain fees.
If the buyer pays using an approved electronic payment method (PayPal or credit card), we close the case automatically. If the buyer uses another payment method, go to My eBay or Seller Hub and mark the item as paid.
If the buyer doesn't pay, you need to manually close the case in the Resolution Center within 36 days after the listing ended, in order to receive a final value fee credit.
If you haven't closed the case on the 37th day after the listing ended, we automatically close it and you won't receive a final value fee credit. Also, we won't record an unpaid item in the buyer's account.
Once the case is closed, you can't reopen it.
When you close the case, we may take action against the buyer, including recording the unpaid item on the buyer's account. If a buyer has a history of unpaid items, it can lead to limits or loss of buying privileges.