Cartrack services is bad

I realized that my unit is not picking up on the App, i phoned Cartrack in October last year they said the unit is not working, I asked them to come fix it and they said is out of warranty i need extended warranty which i said they can add it.....my monthly subscription went up but nobody is coming to fix the unit

In jan after I called them several times they sent a technician who refused to fix the unit because he said the is a missing unit in the car and the one available was installed incorrectly funy enough with it was recently fixed by a Cartrack technician, I phoned Cartrack regarding this and they said they will investigate and come back to me

In feb I missed their debit order now they are bordering me about it, i mean why should I pay it if they never helped me

Cartrack is bad, my motorcycle was ****** with their unit they never picked up the unit disconnected in it, i lost that bike till todate, i picked up that in another bike the signal is lost via the app, i phoned them they said it is out of warranty I just canceled it right away and later cancelled all of them