Hi and thanks for dropping by support.
I believe it'll automatically start charging after the 30 day trial is up. At least, I believe that's how it worked way back when I did the trial. It kinda slipped my mind and noticed I forgot to cancel it until I saw it on my bill. You can cancel the subscription using the steps here.
If you're still wanting to speak with someone about your account, you can run this by T-Force using the FB or Twitter links below. I can't promise the charge will be taken off, but you're welcome to run this by them.