Cartrack please track your reputation!!!

I bought a car for my company in January, requested cartrack to service me with a unit, they later confirmed that the unit is fitted and I started paying my premiums on the same month.

Last month I tried to locate my car and was given coordinates which I followed till I found another car which is different to mine in Pretoria, and I immediately took it up with cartrack whereby we found that the unit which was supposed to be fitted on my car was actually fitted on a wrong car and I have been paying for the wrong car all this time.

How do they sort out their mess? They saying I have to pay a cancelation fee so that the unit that's on the other car can be canceled and request another fitment for my car,... What happens to the premiums that I've been paying all along? "we are sorry about that"