Absolutely Inept / Non-Existent Service

I have had an a/c which this service provider since before 1995. Every year I have problems with my email when they interfere and adjust things on their side. My email has not worked for 2 weeks following an advice from them that my Outlook email may give problems following further interference on their side. Since 9 June I have been driving to my local Vodacom branch twice per day who then phone the Voda technical H/O for an update. I have to be on hand to answer personal questions to verify my account!! I was told on 9 June it would take 72 hours, but later they said the 72 hours does not run over weekends! Be that as it may, it is now over 240 hours with no response in sight! Vodacom make sure that my debit order is paid on time. I have also spent the past 24 hours communicating with them via FB with them posing the same nonsensical questions repeatedly as they do not look at the message trail that has gone before.