Pathetic Customer Service

Have been using netstar car tracking for over 5 year's. I then decided to change as they were never responsive when you press their panic button. On the 30 December 2022, I decided to cancel as I was on month to month. To date they have not honored my request to have their tracking device removed from my car. When you call their call centre their employees put themselves on mute, when they finally unmute they tell you to repeat what you were saying and be sarcastic about your request.One agent laughed when I asked her if should I take this matter legally. I keep being told that my query was transfered to an incorrect department and I will be contacted. To date no one has contacted me. It's been over 32 days waiting for them to remove their unit or refer me somewhere to get it removed. The new tracking company has installed their unit and because there's two, it's draining my car battery. Can Netstar just get their unit removed.