bad service

i have MX3 tarckers whic i transfered from my previous car to the new car on the 28th of Feb 2019 which i had to pay R1500 for the transfer. My tracker is not working from the day of the transfer and i have been calling the fitment centre to come fix it but am not getting any help. I have never ever seen such bad service and unporfessional people. They keep on telling me that their technician is he will contact me when he is free to set an appointment which he never does . I am very disappointed with the service i have benn receiving from matrix after i had to pay so much money. it's been 3 weeks now i am driving a car without a tracker that i have to pay every month.