Bad customer service

Vox installed our fibre quick. But it seems their system is not very good, I still get calls regarding them wanting to come install it. On the portal it kept saying my balance is 0. One day ago I got a SMS with my balance, they were supposed to take via debit order but could not. They suspended my account, I made the payment through the portal which was then updated. Today my WiFi is still suspended. We have spent a lot of airtime trying to sort it out but a Lerato from accounts just put our call on hold while we were still speaking and we called again multiple times then they just cut our call. The fibre itself is not the greatest every day it doesn't work at some stage.