For three days I have had no network

For three days I have had no network. I have phoned numerous times, and all support would tell me is to reboot the device or to optimize and then reboot the device. It did not work. This was the most frustrating experience. Customer support really needs to work on their support, they were useless. Except for Zanele Ndinisa, a 5 star rating for her support. She assisted me with the problem and didn't just tell me to reboot the device.