Vodacom

I do not know where to begin or who to talk to. I was promised that Vodacom would fix my wifi between 8 and 1 today - even have it in writing. I have just called and they now say it will be tomorrow at 15:00. This is after reporting it last Thursday! Had no wifi for 10 days last month and now another week. Every time I call Vodacom or they call me, they have a different story and have **** to me over and over again! This is absolutely ridiculous and all they say is sorry!!! The worst service ever! I am soooo disappointed. Wish they could just be honest!!!!!!!!