on 10-04-2022 10:30 PM
Just cancel the sale.
You offer 30 day change of mind return, What do you expect to do, force the sale completion, then be forced to accept the return with the buyer responsible for postage for an item they have already advised they do not want?
You will likely receive negative FB and bad luck if the item is damaged on return.
Cancel the purchase.
You will be prompted to refund if the buyer has already paid.