If you're logged into the forums, your account must be subscribed and current, so unless there's been a rule change I'm unaware of then I'm not sure how you can be asking to delete your current character if the account is inaccessible.

There does seem to be a free login period right now, so you may have access to your account after all.

Also if your account never graduated from the free trial, the trial itself has been extended and now goes for an unlimited time and up to level 60. Free trial characters carry over to the full game so you don't need to delete and start over for that reason, either.