No assistance from Netstar Tracking Company

I contacted Netstar on Sunday the 1st to report a fault with my tracker. They followed up by sending me an email requesting for further details to schedule for an appointment with a technician. I responded to the email and I was told to expect a call from a technician by Monday or Tuesday the latest. Netstar hasn't called yet and I had to do a follow up and chase them today. When I got through to them I was told that they tried reaching out to me, to no avail. But to mu surprise there hasn't been any call back on my end. I spoke to a representative known as Andile Mtshali from the Product Service Department, who was back chatting, arrogant, rude and she told me that the only available time they have will be next week Friday. I asked for her to recheck as Friday the 13th is too far this is a matter of urgency. She was rude the entire time and had alot of background noise where she confidently told me her colleagues are working and theres nothing she can do. The call took a turn and she wasn't waiting for me to finish to speak to explain what happened on my end so that we can solve this query. I am more than happy to cancel my contract as there are far better companies who are better at customer service than Netstar if this is the service I will be continously get before I get assistance I might as well move to another company. I am disappointed in Netstar