Terrible Security Company, system has been install...

Terrible Security Company, system has been installed 18 months. The sales people are not the most honest, you need to be careful, ask for backup on anything they tell you in a email. From the very beginning we never we picked the wrong company, charged for equipment we were told was included, service contract in all our correspondence was to be for 36 month, now they just tried to tell us it is 42. We installed the security system in a property that is up for sell and no one is living there any longer. All of the siblings live 500 plus miles away, so we thought it would be a good idea to have something to watch over thief, fire and the water pipes in the winter, the house is in PA, so this is a common problem. FUNNY THING IS, today we found out the house has been OFFLINE for at least 5 months or more!!! So much for a security company making sure your service isn't interrupted for any reason... no phone call, nothing from the company. SO EXACTLY WHAT HAVE THEY BEEN MONITORING FOR THE PAST 5 MONTHS AT THIS ADDRESS!
Go somewhere else.... I didn't my homework deciding on a company, and we made the wrong choice....