SMCorp / Can't Cancel unwanted membership

I have been trying to cancel membership with SMCorp since the moment I felt I was talked into giving out my credit information and forced into becoming a member. I have called repetedly and when gotten a real person instead of a machine they have transfered me to a machine detailing instructions on how to cancel which were not aplicatable in my situation. When I recieved the packet in mail as said on the machine for canceling I returned the packet. It's been almost 2 weeks since I returned their packet, I still have not gotten my membership canceled or my money back as they claimed I would if I cancel within the 30 day trial.