You need professional help. It's unfortunate, but there's a very specific format you need to be responding in that's not intuitive unless you've written a bunch of these.

Check out any of the following (I've met both of them and can recommend them):

Ed Rosenberg, ASGTG

Chris McCabe, ecommerceChris

You'll pay somewhere in the $1-2k range for a listing reinstatement, they'll write a professional letter to Amazon in the format they want and hitting all the right points, and you'll be back in business.

Alternatively, you can sell wholesale to other sellers who will sell on Amazon, and not have to deal with this crap yourself.