Hi - you have posted on a board that doesn't really deal with this type of query so your post may be moved to another discussion board.
Not sure what you mean by a beta fee.
Do you owe ebay fees for selling? If so they will expect payment to be made on the date specified in the invoice.
If I am wide of the mark, maybe you can explain a bit more what fee this is you need to pay.
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Merry Everything & A Happy Always 🙂