Pathetic and unprofessional service from netstar regarding a Faulty tracker

Netstar is but the worst company I've ever come across when having to resolve or inquiry about a service they rendering to me. I have consistently called Netstar regarding my faulty tracking device and till date i have not received any service from any or the management team, each time i call the to escalate i get told the management team is in a meeting 2 weeks straight, no one is available to assist with my escalation, the agents I have spoken to are beyond ***********. Mpho the reception sounded more irritated with me wanting to speak to a manager she lacks patience and empathy, Oyama put me on hold for 10 min and therefore transferred me to another department without telling me. She has no customer service experience ,Nicholas too told me his manager Thato is in a meeting, that did not come as a Suprise to me, nicholas does not know who the CEO is, he asked me to hold so he could ask someone, he showed no interested in my query at all. Netstar does not value their customer, i have no convince in them at all. What is one to do to speak to a manager at netstar???????