Houston Security Cameras

Initially I called Houston Security Cameras number listed on Angie's list ? sometime in August. Person told me to go to their website and fill out a form. Website: http://www.nexlar.com/ I filled out the form asking to configure both an existing system and cameras. Additionally, I asked to install the controls for the cameras on my computer. For a long time ? they did not respond, I put another request ? still nothing!!! I called the number listed on the website. Nexlar found my request, profusely apologized and told me that someone will call to set an appointment. Again, nobody called. I called again and the Nexlar person answering the phone set an appointment for Friday, September 11, 2 pm. As always, nobody showed up or called. Today, I called to check why nobody come by. I was told, that ?they don?t do residential only commercial properties?!!!! If you read the description on the Angie?s list it says: ?Houston Security Camera offers wide variety of security systems & services in Houston, Texas for RESIDENTIAL as well as commercial usages?. During the last phone conversation I was told that ?I was given an estimate by phone ? a lie!! If they don?t service residential ? why is in their description in Angie?s list listed as ?residential and commercial????? The final questions are ? how does an unreliable company, which neither responds to a request written on their website nor honor their own verbal commitment is able to provide any type of security???? Why they are even listed on Angie?s list????