To avoid being suspended for inactivity it is a requirement that you login here at the forums at least ones every 31 days, posting is optional. Logging into account panel and/or cPanel does not count in this regard.
If you requested unsuspension and did not login here prior to, or directly after, that would be why the system picked you up as inactive once again.
Sadly I have no way of unsuspending you from where I am right now, otherwise I'd do it for you, but you can do it though your account panel.