3 Weeks of Error 8572. Not sure what to do at this point.

Hey everyone, I’m at my wits end with amazon support right now. I’ve been in a revoling door going back and forth trying to get this issue resolved with no luck. I have been trying to list 3 new PL products using UPC barcodes I purchased a month ago from GS1. Every time I have received the same error code on all my upload files, Error 8572 GTIN doesn’t match with product trying to be listed.

I have been referred to a “internal team” 8 times now, I have always gotten the same generic answer of “your brand is not enrolled in the GTIN Authority program so you shouldn’t be recieving any GTIN related errors, just try relisting” it is such a slap in the face everytime this happens because inevitablely I will try again and get the same error. I have been on the phone multiple times with support and they are just confused as I am about what this “internal team” is doing.

At this point I’m over it and am looking for suggestions or strategies on how to get my products on amazon.

Appreciate the help everyone.