Itemised Billing

On the 2nd of September 2015, called vodacom customer care to enquire about my Data account, I was informed that i depleted 3Gigs of Data in a space of 8 hours. I asked how is that possible, I was told that my wifi rooter was on the whole night. I then requested an itemised billing from the guy. A couple of days later i received an sms requesting a copy of my ID and a letter. faxed those to the *** number. Today am being told that there is no record for my request and Customer Care just drops you calls. Can somebody at vodam please send me an itemized billing for the date '31st August 2015 to 4th September 2015.