Netstar incompetence

Recently I was notified that my contract is for renewal and new type of transmitter needs to be installed - free of charge. I took the first car to do so. I received my new Invoice, which was complete mess. I returned the invoice back and paid my normal monthly amount. I received no reply from Netstar and followed up with a phone call. I got all the usual "we apologize for the inconvenience" and nothing happened. Now I took my second car for the free upgrade and just before that received my monthly invoice which shows the first car twice! I was about to say good by to Netstar, but decided to visit the fitment Company DVM TRACKING &CELLULAR SERVICES at Ontdekkers road. The lady at the office was very helpful and knowledgeable. She sorted the Netstar mess. It was a pleasure to speak to her. They installed the upgraded unit without any problems. Now I wait for Netstar to send me some crazy invoice, which I will ignore and pay the correct amount. The Netstar accounts are always a mess and now they even have an excuse of COVID-19. I have stopped wondering about the antennas searching for intelligent life facing away from the Earth.