Netar Harassing me with Calls and sms's

I started receiving sms's and phone calls from Netstar in connection to Panic/Battery disconnections for vehicles not belonging to me on the 13th of August 2021. I have since been receiving 18 sms's a day and numerous phone calls still for vehicles not belonging to me. I have phoned the call centre 4 times and explained my situation to them and nothing is being done about it, Till today im still being HARRASED by Netstar. There is NEVER a manager available and I continue getting calls and sms's from Netstar.