Unable to cancel contract

I have come to the conclusion that nobody works in the Tracker Retention Department.<br> <br> I sold my vehicle and emailed through notification of cancellation at the beginning of February. I since have been trying to contact Tracker telephonically to confirm the cancellation, am always transferred to the Retention Department but no one answers that line.<br> <br> It's not as though I'm an impatient person. I wait at least 10 - 15 minutes every time I call through.<br> <br> It is now almost the end of Feb and I still have no idea if I am going to be charged for another months worth of Tracker. The unit was originally installed in 2007, so the unit itself has been paid off, meaning that there should be no cancellation fees involved. A simple cancellation, you would think??<br> <br> Please can tracker contact me asap? I was thinking of having a Tracker unit installed in my new car, but am definitely thinking of going to another provider after this experience!!