Paying for nothing no serviced rendered but charged

Where do i even start. Ive been using cartrack since 2023, ive recently bought a new car in December 2024 and requested that my tracker be moved from my old car to my new vehicle a fee of R870 was charged and a technician came to remove the tracker. I called in and inform the consultant that i have purchased a vehicle can i get a technician to come reinstall the tracker, till today the is no one who has came, mind you i was charged and paid the monthly premium in December plus the removal fee. I am so fustrated, the 1st consultant insured me that a technician has been allocated i got an sms , confirmed my location and no one came. Guess what this has happened 3 times in December. Until another consultant told me that the only slot they have is in 2025 imagine i was guarding my own car throughout the festive season. What a dissapointment. The technician is suppossed to come tomorrow the 6th of Jan and i have not recieved any sms concerning this, I definetly know that this will drag and i will pay again this month for a device sitting in their offices .....