VIVINT alarm company  false advertising, no cancellation agreement Provo Utah

vivint went door to door advertising this product. I told the saleman I needed to do my budge to see if I could afford this. He said no problem, we can install this tonight and if your budget doesn't allow it then you just call in and we will cancel it. NOT TRUE. I also wasn't told it was a 42 month contract. He circled that after I signed it. All of the product was installed either. They told my husband to install it at a later date. I was told my checking account info was for a one time use and then I could make my payments. NOT TRUE. I had to put a stop payment at my bank. I have called VIVINT serveral times to cancel and they won't cancel. They told me to put it on craigslist or give it to a neighbor. Why would I do that when I don't even like your product. I wasn't told about 3days to cancel. I have only had it 2weeks and I want out. DO not get VIVINT.