Taken funds but no service

I Have been having the netstar unit in my vehicle for 13 months now 3 months ago I used the mobile app to do a test / locate my vehicle to my shock the unit I have been paying for is located in Port Elizabeth and I am located in the Alberton area since then I have requested numerous email and call centre calls to get this rectified eventually I requested my account to be cancelled neither with success and Netstar to this day is still deducting funds from my account , I have a numerous ref numbers with promises they will get an agent to assist me but still waiting, please stay clear of Netstar your property not safe with them I was forced to get additional tracking unit even while I am still paying Netstar