violating consumer protection act

At responding to alarms i'm hope they are fine (we never used them so i cant say for sure how their performance of that service is) but their administration and treatment of clients is AWFUL!!! ADT made is so difficult to get out of a contract. They did not fully disclose the contract details on signing up AND now, more than 6 months after the contract finally ended, they have been using the information i provided to them for purposes other than what i provided it to them for. I'm quite sure this is against the consumer protection act. At this point in time i have sent emails and made telephone calls but no human has yet resolved or attempted to make contact with me about this so I feel they're just not a great company and i would advise anyone i know to steer clear of getting involved with them or start looking alternatives that are not connected to ADT.