Very dissapointed in service

I have been a client for less than a month and already have problems. We noticed on the 19th that our tracker was not showing trips amd tracking. I phoned in and they rebooted my unit. Once this was done my tracking was now for a different car and engine number. Vin was still correct but now it was also tracking a vehicle in Limpopo, I am in gauteng. Since this I have made more the 12 calls the repair department did call but I was on another call so they closed the repair. So here I am tracking another vehicle. So my car track is useless to me as if anything happens they will look in limpopo. The lady today told me it takes 3 days turnaround for a repair and to validate, so in the mean time we just keep paying and praying nothing happens. I have 2 other vehicles that I will not be putting in cartrack but if you say you want a unit installed they will be there the next day. The unit is less than a month old If I could tell them to take their unit and cancel my contract I would.