The door to door salesman tricked me into changing...

The door to door salesman tricked me into changing my service to their company. I was currently with a security company called monotronics. The salesman told me that the company was being bought out because they couldn't reach a deal to go to a 4G network from 3G. I ended up signing a contract by being decieved. Needless to say, I would not reccomend this company. I also requested to freeze services due to a move, they agreed but continied to charge me. I AM NOW GETTING A LAWYER INVOLVED.