Bought a system last month. Saleslady advised to use Motion Detectors, but with animals in the house the install people advised differently.
They suggested Glass Break senors instead. Offered to SWAP 4 Glass Break for 2 Detectors at no cost. After they finish they present me with a $254.29 Bill called a RIDER. Would not leave my home until I acknowledged the Rider.
Signed it under objection and called Saleslady who says, "we will remove the charges". In California we have 3 day Grace on Contracts. Covered a letter to Her at ADT to demand removal of the charges or take out the equipment.
1 Month later still awaiting my credit and No Removal of Equipment. Now its to small claims Court.