Purchased Data and haven't received it!!!

I was due for an upgrade &went in on the 28.04.15 and was called on the 5.5.15 to collect my phone. I was told that my new package would be implemented on the 1.6.15 as we are already in the month of May. I had tried to purchase data using Vodacom service number but was unable to. I then contacted the service centre and the lady was unable to help me. I had gone into the store to purchase data and that too was unsuccessful. I am now using data and refuse to pay the data bill as I was not given proper clarity as to why I hadn't received data. I was also told by the guy in store that he had reported to IT and they can only assist me on Monday. What am I supposed to do in the mean time???? I am disgusted with the service.i cannot believe that with today's technology that there wasn't anybody competent enough to assist me. This is terrible ..if this issue isn't resolved I will be taking the matter up further.