Bad customer service from Vodacom

Vodacom's customer care service leaves a bad taste in my mouth. Besides the fact their connectivity is bad in our area and does not get resolved, despite numerous requests and reports, their billing is in disarray as well. Charges are levied on your account and they cannot give an explanation for the incorrect billing. Every time you follow up with Vodacom you speak to a new person and you have to explain the problem all over again as no-one makes notes of previous complaints despite a "reference" number being given. When your contract expires they tell you that you can continue on a month-to-month basis and then you receive random calls from "agents" to whom Vodacom has given your details, but they do not actually work for Vodacom and you have to endlessly say "no, I do not want to enter into a new contract because of endless problems with Vodacom" and then they just go ahead and "upgrade" you without your permission. Please think twice before you take out a contract with Vodacom. My experience with taking out a contract in the past has been ********** as the sales person and I agreed on the contract I wanted. I asked him to confirm the amount to be paid every month and he confirmed and when the account came it was more. It took me 2 years of fighting with Vodacom to actually listen to their recordings to see that I was being overcharged. They after 2 years listenend to the recording and then promptly credited my Vodacom account without as much as an apology. The worste service ever!!