Calls like clockwork except when it counts

The very reason I decided on cartrack instead of the other companies, was based on great reviews. However, this is not the case for me. And this is not based on 1 experience, but a series of experiences. Firstly, the day the tracking device was supposed to be installed, the technician was a no-show. Then once the device was installed, I received calls every morning for 8 days, stating that there was some power issue with the battery, which was not the case. I explained multiple times that it must be the device itself. I was then told that someone will be sent to do a maintenance check. 3 days later, I'm still receiving calls at 6 am whilst I am driving as well as my emergency number who has now become more frustrated with me because of the constant calls. Although I received these calls like clockwork every morning , as soon I requested to be contacted, there was no communication from their side. I am still awaiting a call based on a request made on Wednesday 22 July 2020.I have saved some of the correspondence between myself and the agents.