CarTrack - Units not working.

Hi, I installed the unit on the 11/10/2021. Tried to track my car via the APP and i was not successful. When i called and told them you cant debit until my unit it functional, he told me that even if i cant track via the app doesnt mean their system cant tract my car. I was transferred to another operator that tried to locate my car and he was not successful. He have me an email to escalate by situation. I then got a call that my issue will be resolved. That was the last time i got feedback from CarTrack. I check my account has been debited and still the unit is not working. I would like the unit to be removed from my car and contract cancelled at no fee to me since i was sold a functioning unit and in reality mine is not functional