Having issues applying for GTIN exemption.

I already got approved for Brand Registry for my brand “Kingsway” but I’m having issues trying to add my first listing. My beard care products doesn’t required a product ID and I don’t have one. I get an error saying “UPC Exemption not approved” and I shouldn’t be getting that message. I should be able to apply for the exemption. It’s my first product. I have hundreds of products ready to be shipped out to the warehouse but this is issue is holding me back. I really need help solving this issue.