Forcing client into debt review

I started a debt review process but never completed it due to not understanding the process and not agreeing with the t's & c's. I have informed both Roche and Anastasia that I am not happy and also that I need to think before I proceed. I contacted them the next day via email saying I will not proceed. They are now refusing for me to cancel this process. I am currently stuck with no way out of it as they are also refusing to make contact with me.