Vivint Inc Vivint.SmartHomeVivint APX harrassing phone calls, theft from bank account, Provo Utah

I discontinued services with Vivint home security services after 6 years. They would not support their faulty equipment, which sent off false alarms, but they had no problem collecting their monthly fees. I replaced them with a different home security system. This was in August 2016. Since then, they have continued to steal money from bank account. I've had to pursue filing with the bank, finally closing out that account and opening another.

They have called me no less than 5 times/day on my home number and 2-3 times/day on my cell phone from a multitude of different phone numbers.

I've contacted the MD State District Attourney's Office but have received little help there.