Worst Service Provider, worst call centre agents

I wish there was a minus 0 star because that's why pathetic this issue is, my brother has a product with Vumatel or whoever their sub contractors are SADV. My brother wanted to upgrade his package and made payment on the 9th of December, mind you his normal pay date is the 15th so when he did the upgrade he still had 6 days of coverage.Vuma decided instead of upgrading him they will just cut the WiFi. We have been querying this since. Today was the worst of them all, I spoke to a lady who was so clueless she eventually said we should switch to Zulu since I am understanding her, mind you I don't understand Zulu. My calls are recorded and I hope yours are too because I am going to take this further. Eventually I spoke to another person who told me that they escalate to head Office which in this story is Vuma. Only to find out the cover was cancelled, WHY???HOW???? Since when is an upgrade payment regarded as a request for cancellation.??????