Forum rules do not prohibit the creation of multiple accounts, as well as their sale. By blocking such accounts, the administration is breaking its own rules. If you don't like what I write, you always have the option to ignore my messages.
Have you read the rules at all? Now you have proven once again that the blocked account is your alternate account. Thus, according to the rules, this account of yours should also be banned. Once your one account is locked out, you cannot write and use the other account. The only thing you can do is create a new account for the sole purpose of filing an appeal in the META section.