I think I am doing something wrong, all of the categories, including the “ungated” categories are asking to “Apply” to gain brand approval to list an already existing product on AMZ. Even off brands from China, brand names that I cannot even locate online. But they do not approve the invoice from the wholesalers I am trying to use.
Have you hit apply yet? Sometimes you can get auto ungated.
What is the reason they denied your application, and are you using a USA wholesaler?