Shocking Service from Netstar

I actually do not know where to begin. My bad experience with Netstar has been part of my life for as long as I can remember. In February I sent an e-mail to customer service enquiring what service I was subscribed for as I was not getting the service that I thought I was subscribed for. It took them 25 days to respond to my e-mail with no real answer. I tested my device on 27 May as per their guideline. I received an SMS and a certificate from Netstar confirming everything is in order, only to be told on 2 June that they are not picking up a signal from my vehicle. At 05:08 on 3 June I was informed that they received a signal from my vehicle. I was fast asleep and so was my car since I parked it in the garage at about 19h00 last night. Not sure what the fuss was about I decided to put them to the test. I did not deactivate my device this morning when I started my vehicle and was waiting for their call to check if everything is okay. No such call. When I phoned them I was told that they won't phone if I de-activate the device using my remote - what absolute junk! A short while ago someone from Netstar phoned me saying they don't get a signal from my car. What is wrong with them???