Your account still is wearing a signature, so it's not permanently banned.

Given the recent password reset and email change, together with the feedback by numanoid, I assume it's been hacked and has been locked as a security precaution.

If the hacker changed the email, however, you will have to restore access via Cyrus or theymos, and with a signed message, as you are already attempting.

you do not have to bomb them with daily PMs, they get enough messages as it is.