Disappointing, uncaring service

My tracker was not working at all. Asked them to cancel it and fit and new one because they were ripping me off. They were charging me almost R200 a month for a device that doesn't work, yet the correct price should have been R70 a month for a working device. Called from my cell phone. These *********** people kept me waiting for almost 10 minutes until I cut the call. I called again and they promised to phone me back. They lie that they tried to call me back when really it took them 3 days to get back to me. I asked for my new vehicle to have tracker activated. They once again quoted me a huge figure. I'm asking who is going to handle my complaint and refund me the money they owe me for years. As an Outsurance client, the premium is R70, yet they were knowingly charging me R200 for years. I demand an immediate refund and apology because my peace of mind was for nothing. If my vehicle was ******, it would not have been recovered because the unit was not working!!! If there is anyone there who is competent, please call me urgently. Don't treat me like dirt - you put me through to 10 different people all of whom couldn't deal with the query. I'm tired of their lies.