I'm really at my wits end with Cartrack

I'm very disappointed for the fifth time, that Cartrack and it's employees are sleeping on themselves and their customers. For 5 months we have been struggling with the smallest thing they just cannot get right. What is so difficult to follow instructions? Your call centre agents call us none stop but still do the opposite of what the discussion was about. Somebody call me back preferably a superior and rectify this mess that you guys must to fix. Wake up and smell the coffee.