CarTrack cancellation fee ripoff

CarTrack conveniently leave out costs of cancellation . CarTrack contacted me after purchasing my new car to let me know that the car was fitted with a cartrack device from the previous owner and would I like to continue the Cartrack.. wicked I agree .. they let me know of the monthly payments which I’ve being paying for the last 26 months . Now I contacted them to cancel the contract as I have just sold the car . I’ve been informed of a cancellation fee of about R2500 .. this is the first I’ve heard of this bogus fee as I was not the one who had it installed.. this device must be at least 5 years old and was probably paid for from the previous owner.. I’m happy to paid for a 30 day cancellation.. but this is just plain ******ion..and would never want to do business with them again or recommend them.. lost my business when I purchased a new car’s in the future if this is now resolved…