Account Ban on Brand Registry with No Explanation

We have been banned on Brand Registry since last summer, and have made cases as well as called seller support to understand why we were banned. This has affected our ability to accept any reseller permissions which is essential to our business. When I had spoke with Amazon, I had brought up that we have no violations, and none of our reporting was in the red, all of ours have been accepted. If we had violated the policies, we need to understand what that entails as far as we can tell we are within guidelines. I did ask since we are connected to other brands, if that one of those accounts were in the red, would that affect us, and we were told potentially. I did bring up why would we be held accountable for another account, if we are not managing those accounts just a reseller. I also had asked how long this ban would be and no clear answer was given, which it has been at least 9 months and still no lift on the ban. I am asking for any help here to remove our ban and to review what is it that we can do better in handling our brand registry.