Lost account access

So since yesterday with what happened, we lost access to our account. When we try to login with the email, it says that our email is not associated with any AmazonSeller account.

We have been trying to reach AmazonSeller customer service, but there is not one direct for us. We have sent multiple inquiries and emails, but so far nobody has reached out to us.

Anybody has any idea what else can we do?