Worried customer

I have a contract with cartrack but they fail to move track device from my old car to the one I'm driving now ,almost 2 full weeks without a tracker on my car. I've paid everything for them to remove device from previous car but still app shows that old car still have the tracker device I've paid for to be removed and installed to my new car. Even monthly payments paid for the current month but no service I'm at risk now no tracker on my new car.