Amazon closed my selling account due to being linked to another account

Hi,
Only now, after getting my account reopened I can share my experience about a very unusual Amazon account suspension case.
About a month ago my Amazon Europe seller account got closed, this account includes all European marketplaces. As you can imagine, getting your seller account suspended can be very stressful.

For 30 days, I couldn’t login into my seller central account. I still received notifications from Amazon FBA about sold and shipped items, but I couldn’t log in to the seller central. This means that I wasn’t able to open new cases regarding the suspension or reply to emails I received from the seller support. I also couldn’t adjust my PPC campaigns, change the prices for products, and submit my tax fillings.

My account was closed by the Amazon Germany team. Before I received the suspension message, I recently updated the banking details in my account.
My Selling Account was deactivated with a notification that it is related to a different account which was in a violation of terms and conditions. Since then, I was unable to access my Amazon EU Seller Central.
Upon further investigation and numerous calls/cases with the SS Team, I was told that my Selling Account is related to Buying Account under the same email address whose status is Abusive.
I haven’t had any warnings or violation notifications prior to the suspension.
SS Team mentioned that my Amazon Germany Buying Account is suspended due to a high refund rate. This was a bogus reason, as I only had made 1 order which was never returned or refunded.
I sent an appeal email to ofm at amazon and received a reply:
“After closely examining your account, any related accounts, and your order history. We have ensured that any decision regarding your account was made according to our policies. Your account will, therefore, remain closed.”
They also mentioned in the email that they may not reply to any further emails.
After numerous email exchanges and phone calls with Amazon support, I lost all my hope that I will get my account back. I felt devastated and confused. I decided to remove all my inventory from Fulfillment centers. This also wasn’t an easy task, as I still wasn’t able to login to my seller central, which is the only way to request inventory removal.
Only after requesting for my inventory to be removed, I finally received an email from Amazon support that my account is reopened. I was relieved but still confused. I wanted to know the reason behind this suspension, so I asked to explain why this situation has happened and of course, I still haven’t received any explanation from Amazon.