Rude service from Tracker call center

We called to find out why did they send people to install a device when we had already cancelled it and a consultant by the name of Fikile was rude and did not help in any way. <br> We had cancelled the contract with Tracker because of our insurance obligations as they do not work with Tracker, so that would mean that if we go with Tracker we were going to lose some benefits, after this was explained to us we called and cancelled everything with Tracker, it was on the 25th of June 2015, and we were told that a cancellation is sent forward but then saturday morning, 04th of July 2015, a technician rocked up and it wasn't until he was done we realised that it was the Tracker people, so we called to get answers as to whats going on and Fikile said we will have to pay for them to take out the device and she was rude and not trying to understand and listen to what we had to say.