No communication from Vodacom regarding a inquiry made

On the 30th August 2017 I called the Vodacom contact centre inquiring about why the data I purchased reflected a 0 balance yet I never used the data. The call centre agent informed me that I must have downloaded something, hence my data balance reflected 0, yet I informed him that I did not go onto any site, neither did I download anything. The resolution was further investigation needed to be done, therefore my inquiry will be passed onto another department. My reference number for this inquiry is: 1- ********** ********** . I was told that I should hear from Vodacom in no later than 7 days. To date, 7 days have passed and I received no communication from Vodacom.

I have been a Vodacom customer for seven years and I am disappointed by the service I received.