Unistallation Nightmare!

I called in on Friday (16 October 2020) to arrange for the tracking device to be moved from my old car to a new car on Monday (19 October 2020). The agent said the unistallation has been logged and I'll receive a call on Saturday to book the installation into the new vehicle. Nobody showed up for the unistallation and had to take the car in yesterday for the trade in. I spent 2 hours calling Cartrack before and after the trade in to find out how they're going to get the divice from the old vehicle for reinstallation but was transferred from one department to another. The scheduling department would ring for 6 minutes then cut off. I'd have to dial back in again and get shuffled all over again. I haven't been using their services for a month and already I'm regretting signing up.