Fustrated new seller

Vent: I legitimately didn’t think I’ve ever had more issues trying to just list products on a site in my life. Im a clothing line that sells jeans from that are from private label companies and because i don’t have a barcode on my items I’m having the most aggravating time. I’ve tried to file for an exemption which was declined not showing the stitch of the brand on the jeans in the photos (it definitely was in the photos) and now I cant file for another one because somehow theirs a random barcode number locked in that isn’t to my jeans but to a woman’s body shaper. I’ve tried to figure out how to delete it but under inventory it’s saying i have no listings. Idk if anyone can help me but i really hope so. I’m not sure how much longer i can keep trying to list on amazon. 😔