Most *********** *********** company I have ever dealt with

I had all my vehicles fitted with tracking devices from Netstar and I have had issues from day one on all of them. When you order a new product you have phone multiple times to chase up the delivery. I have spent multiple hours on the phone trying to resolve issues (20 calls +)and it is the most frustrating experience as they do not know their own products and just pass you from one department to the next and after a half an hour you are told that the issues are resolved only to find the billing has not changed the next month. One of my vehicles is more than three years old and I thought it would be a good idea to test the unit. I was then told by Netstar that the unit's battery is dead and that it needs replacement, whilst they were still happily billing for this service for who knows how long. They even phoned me to replace the battery, but I was out of the country at the time. I just phoned to get the battery replaced and I am now informed that they can not replace the battery and have to replace the entire unit and I have to sign a new 3 year contract???? The decision is an easy one. Cancel and move to a reputable company.