Brand Approval

Hi i have receive few false complain on compliance stating that i am selling fake products and account health has approved me selling the items after all necessary document submission. But somehow now amazon has asked me to request for brand approval and after submitting about 20+ times its keep getting rejected without a valid explanation when it was once approved. This is so annoying as seller as i have those products with me but cant sell and i been selling thousand of it.

Can anyone help how can i solve this as amazon help center keep replying with the same message without reviewing my documents.