Is there any remedy for a brand name change?

I want to save the reviews on my current product listing that needs a brand name change. Many years ago, an Amazon rep told me to use my company name as my brand name (had a trademark) to use brand protection against bad sellers who were selling without my permission. I was told I could change my brand name anytime, and when I had the trademark for my actual brand name, I could change it and not worry.

It worked to protect my listing from fake sellers at the time, so I was happy. Now, I want to change my brand name, and everyone says I need to create a new listing, but I would lose my reviews if I did that.

My brand name took some years to get because it was initially disputed, but we got it in the end. In the present day, my company name is my brand name. Customers are still buying on the listing, and I can't afford to leave the reviews behind.

Could I go through any appeal process to have a real human help me? Could they go back and see that a rep gave me bad advice and call this a special circumstance?

We have an established brand with over 400 reviews on our product listing, and we have been a registered brand on Amazon during that time period.

Our listing brand name is "NJ Leatherworks", but our registered trademark is just "NJ". We recently tried to set up A+ content for the first time and it was removed due to this brand name conflict.

Amazon support advised that if we change the brand name our entire listing will be deleted and we would have to create new ASINs with the new brand name.

Are there any other ways to work around this without deleting or affecting our current listing and getting the brand name to update?

i have 2 Brand name registered on amazon, but i have listed a products which belong to different brand is there any way i can change the brand on my listing