Faulty Unit ( money making scheme)

I've just gone through some of your reviews and I'm picking up that a lot of your units are faulty. It seems to me this is intentional as I know you will charge for checking the unit/ replacing it.

I've been experiencing the same thing and it is very scary to have the car alert go off during the night. This causes great panick, only to find the car hasn't moved at all.

Highly unacceptable and you are dropping the ball. Your consultants have also started calling me about added "services" I mean, all I need from you is for my car to be tracked through your service and that it. I shouldn't be asked to purchase added services at an additional cost.

I swear if you make me pay for a faulty unit, I will cancel your service with immediate effect. Isn't it enough that I pay you on a monthly basis without fail? How is it my doing if your unit is faulty?