Dream sellers

I was offered a tracker deal (beame) by mix telematics a month ago and this had some added benefits to it. Yesterday I called them to find more info regarding this home drive deal and no one could tell me about it. I was on the phone for over 30 minutes being passed around until I lost it and demanded a manager. Problem not even they were useful. I spoke to two of them 1 the call centre manager who referred me to the manager for the products but she also couldn't tell me anything. Why do an offer you cant explain yourself? How are clients to use these if we cant be given info on it. I was promised that someone would call within an hour after my call before 9am however I still waiting. On top of that I was overbilled but don't know why as the service sucks. I'm now thinking of using this offer but need to know how it works however no one in that mix telematics office can answer me. This is a *******. That are getting clients on false pretends promising something they don't know. I am beyond livid with this subservice and inconvenience