******* from Tracker after 2 days of service

Im so appalled by the service im getting here .Tracker installed a unit on Friday for me and straight after that i had issues with my car ,i called the dealership that i recently bought the car from and returned the vehicle yesterday morning and i was refunded.I contacted tracker this morning and im told i need to pay a R1600 cancellation fee? what **** is that? this is not in my control and i explained to the lady that when i have another car can you not just transfer it? i spoke to the dealership and they said that tracker will usually come and remove the unit if its just been fitted.I dont understand why is this unnecessary cost being transferred to me???