My 4 years account was deactivated after video call

Since my UK account operator has left my company early this year, and there is only 40-50 orders per day this year, so another account operator for North America site began to manage my UK account from March.
On Jun 10, i attended video meeting about Italy site because amazon told me i must attend for my account security.
But we didn’t operate Europe store anymore since UK left Europe, i answered all the questions related my company and my store very well, but my new UK account operator is lack of knowledge about the non-operation Italy site, there were 2 questions she made wrong answer about 3 years ago order date and Italy funds.
Then my total Europe include UK account were deactivated, because amazon thought “Your account may have been used to engage in deceptive or illegal activity that harms our customers, other selling partners, and our store”.
I feel so unacceptable that the Italy has stop selling after Brexit, it has been over 3 years.
if the purpose of video call is to verify my Identity Information, i answered all the related issue very well, so i believe this is wrong and unacceptable allegation to my account.
Also i made appeal quickly on Jun 28, but there is still no response, feel so sad.

The video call email:
"Dear Seller,

Your Amazon selling account will be deactivated on 06/02/2023 in accordance with Section 3 of the Business Solutions Agreement. Funds will not be transferred to you but will stay in your account while we work with you to address this issue. Please ship any open orders to avoid further impact to your account. Amazon’s Business Solutions Agreement can be found at https://sellercentral.amazon.com/gp/help/1791.

Why is this happening?
For your security, we need to verify your identity.

How do I verify my identity?
You need to complete virtual identity verification over a video interview. To reserve a time slot for the interview, fill out the form here "

The deactivated notice:
"Dear Seller,

Your Amazon Seller account has been deactivated in accordance with section 3 of Amazon’s Business Solutions Agreement. Your listings have been removed. Funds will not be transferred to you but will stay in your account while we work with you to address this issue. Amazon’s Business Solutions Agreement can be found at https://sellercentral.amazon.com/gp/help/1791

Why did this happen?
After reviewing your account and the information you provided during your virtual identity verification, we believe that your account may have been used to engage in deceptive or illegal activity that harms our customers, other selling partners, and our store."