Help to restore Amazon Account in Europe

We've been suspended in Amazon Europe for having an additional account we've never heard of. We've only been given their first 3 letters and informed we are not allowed to have multiple accounts on Amazon - which we don't and never have had.

We've sent proof, testified that we have only own one account on Amazon and have never owned any other account and our accountant has even written a letter but we are still suspended.

We would like your help to appeal and restore our Amazon account in Europe.