Inactive ASIN help needed

We have a black tea that’s been selling on Amazon for 4 years. 1 ingredient black tea. Simple, nothing special. We are the brand owner and have brand registry. We created the ASIN and we are the only seller. Recently Amazon restricted the product. Saying we need approval to sell the product because it has been classified as weightloss supplements. The packaging contains no claims and says nothing about weightloss. The product page says nothing about weightloss. We did find in the back end of the listing under recommended uses it said weightloss. This is something Amazon must have put in there as we did not. So we removed it using the feed. There is no exaggeration here. 45 tickets later and the asIn is still inactive. So we tried to apply to sell our own product. They wanted a COA and a GMP certificate. We submitted both. Remember this is a 1 ingredient product. Black tea. A week later it came back rejected because they want an additional COA for Appendix 1 which is for a bunch of ingredients that are not in the tea. We have tried over and over again asking them to look at our product packaging and they will see it is 1 ingredient that matches the COA we already sent. They just keep replying with the same response. This has been going on for a month. The listing was 4.5 has over 300 subscribers n save and we spent over $80k in advertising on the Amazon platform to build this ASIN up.

Does anyone have any ideas on how to get this asIn back active?

I have to say if Amazon can just turn an asin off after so much time and money and not even give any respect or helpful guidance…. In my book doing business with them may be the dumbest business move a company can do. Any help would be appreciated.