Worst tracking company

Cartrack came to install the device into my car end of September. It stopped working a few days afterwards. They didn't inform me. It drained my vehicles battery they still didn't inform me anything. I saw on the app that it shows disconnected. I then emailed them where i was told that there is a problem with my device and that i will have to pay R1200 for a new GPS Unit. It's impossible that something could have happened to the unit in a couple of days when no one knows where the unit is placed never the less actually touching anything on the unit. I have been trying to get the matter resolved with absolutely no urgency from Cartrack. They were very quick to call back when requesting a quote but now the after sales service is pathetic.