A man knocked on my door and told me his name and told me that the home security company if have was merging with his company and they were going to up grade my system as a part of the merging of company 's. As they were changing the key pads, my security company called me, I asked if they were merging with this other company. They told me no and I was still under contract with them. I told the guy who was trying to replace my key pad, to put every thing back the way it was. He did that and left. A couple of months go by and I get this bill from Dynamic Recovery Solutions stating that I owe then, if I pay now {$230.00}. Dynamic told me that, the Security company, sold them my contract, and that, they were to collect my dept. Dynamic wanted me to go to my bank and for my bank to, send them a e-check. Which I did n't do The security System company wanted {$690.00} from me and that was n't going to happen.