Netstar altech debiting for something that doesn't exist

We had purchased a vehicle last year. When altech netstar installed a tracking device. Two months ago we had updated the vehicle to a newer one. We had contacted netstar telling them the tracker needs to be installed. For the past two months they had deducted they tracker fee. With no tracker being installed in the vehicle. Ive been in contact with them numerous times over these past two months and theres being absolutely no movement. Ive been told excuse after excuse and being stalled for two month's. We cannot cancel the old tracker cause theres a fee been a three year contract. So we've been waiting for them to remove the tracker from the old vehicles and re install it. Ive been passed to different people. With the same excuses. Incase of a emergency insurance will not cover the vehicle because our tracker is not installed. We fear for our lives driving around but the bottom line if why are they still deducting something from our account if its not even in use. Please help us get to someone who can help us solve this matter. Ive asked to speak to someone incharge, ive asked if they cannot put on hold the debit untill they sort the problem out and she basically cut the call on me. Almost every second day ive been calling and every single time ive been given an excuse. Ive beem dealing with taylor whom from Tuesday has completely not answered my calls. Prior to her ive been dealing with another lady whom i do know by name however from Tuesdays she aswell has been handing the call over to another lady. !!! What exactly am i paying for here? They salaries? Because there isnt no tracker in my vehicle.