Vodacom Has Made Me Powerless

In 1st week of February I noticed that there was an error with Vodacom, when they deducted R229 instead of R69 for my January 2015 monthly data subscription with them. I reported this to the call centre on the 6th of February 2015 and was advised that there was an upgrade performed on my contract which I did not do so this was a ********** upgrade. I was advised by their Call Centre agent Mr Sandi Biyana, Call Reference Number: 370 861 201, to report the ********** Contract Upgrade which was done on my Modem / Data contact, SIM Number: *** on the 26th of January 2015 without my knowledge. I sent in all the required information via email and fax on the 11th of Feb and I got a response from Vodacom via email saying that they received my documents and they will get back to me with feedback within 24hrs (reference is EC-0W03-1D368Q). Today is the 17th of Feb, still no response 6 days later.I called Vodacom again yesterday and they say they received the documents and the agent said when he checks my investigation, it says its closed and complete. How is that so as I have not yet received feedback? He said him or his team leader will call me, still no Call.<br> WHAT DO I DO?<br> <br>