I am trying to understand Amazon ungating

A few questions: Amazon has approved some of my applications, but I am still unable to list those items because:

  1. For one item, I was able to see myself ungated on the first day I was approved, but after some time, I found I was gated again, even though my application still shows as approved. When I called customer service, they said I could only list a few items for that brand. My question is: how will I know which ASINs I am approved to list? Customer service is asking me to check each and every ASIN for that brand, which is not efficient. I’m wondering if any experts here have suggestions.

  2. For another item, the approval email says I am ungated for a category but doesn’t specify which category. They sent me a link, but it leads to an error page, so I am totally clueless. I tried a couple of ASINs related to the product I was approved for, and I am still gated.

So my question is: how can I find out which brands, ASINs, or categories I am ungated for?