Cheated, no credit for data purchaesd

I bought a data bundles from Vodacom On The 12th March 2016. One for 100 b, which was depleted almost immediately, and another 1 for 100 me a few minutes later. For the last one, I received a text, but when checking my balance, there was no credit. When I called 111, I was unfortunate enough to speak to a consultant named \tshidi\",( they are not allowed to give their surnames), who advised me that the purchase does not reflect on their system.i should go to a Vodacom shop, show them the text confirming my purchase & they will log a query for me. But there is nothing more she can do for me!!!! I was so disgusted and angry, because it was not the first time buying data & it disappear in few second, but no credit at all! I never even went to the Vodacom store I was so upset and disappointed! "