Dear Seller,
Hope you are Doing Good!
I understand your concern about not getting the approval. Please accept my sincere apologies for the inconvenience caused.
Please understand as per Amazon Policy we can not disclose the reason for the decline and the documents were not able to be verified.
I truly understand that some of our policies sometimes causes inconvenience to valued sellers like you. But as this involves a business decision, we as Seller Support would not be able to intervene or make changes on the decisions made by the concerned team.
Please be informed that health and personal care ungating is a business decision that Amazon has made. When we review an application for health and personal care category, invoice is the first checkpoint to proceed further. Without valid invoice we are not able to process your application for this Category approval. When we approve or decline an application post reviewing the provided supporting documents for health and personal care category, we only base our decision at our revised policy. I know this is not the answer you wanted to hear, but please know I have exhausted all resources and investigated the issue to its full extent, and Amazon will not be able to disclose anything further concerning this matter.