Netstar Worst customer service ever

Worst Company Ever.. I've been calling since beggining of December to upgrade and add new car and we are now in February. I have been paying for no service all this time. Everytime I call They hang up after holding for more than an hour. Yesterday I called again after trying for the whole of january with no luck, I spoke to five different consultant and they all hang up on me. I called again today and spoke to Ncobakazi and she started again with what they always do saying ''hello,hello I can not hear you'' Until I had to tell her that she can hear me perfectly and change the tone of my voice they all of a sudden her line was clear. I had to cancell my account after so many years as this was the worst service Ive ever had. I sent a message to Matrix on Friday and they phoned back same time and My cars are already fitted as we speak.