Illustrator Free Trial Problems

Hello!

I suscribe for the seven day free-trial of illustrator and then forgot to cancel it. Now I have a pending payment that I don't want to pay because I don't need illustrator anymore. When I try to cancel my plan it says i'ts not possible because of this pending payment, and says that if I do nothing, the plan will cancel automatically (which hasn't happened yet) Can someone please confirm if this information is true?? I'm starting to get worried and I really do not want to pay the fee for something I'm not going to use anymore.

And if it is true, when is plan going to automatically get cancelled???