Reference number not received for a call

I called the 111 today (01 August 2015) @12:55 and I spoke to Prudence. My query was that I have recharged my account on Wednesday (29 July 2915) with R100 and then purchased the 1GB data bundle valid for 7 days @R69, today I received notification that the data bundle had expired. I use a top-up contract for which I get 2GB per month and I have received my data bundles, however when I am browsing my phone is using the 2GB and not the 1GB valid for 7 days which expires on the 4th (if I am not mistaken).<br> <br> Prudence said to me she will log a call with back office and I will receive the reference number. I haven't received the reference number and I assume the call was not logged. I find this unacceptable.<br> <br> I would like to know what happened to the 1GB data bundle (valid for 7 days), I have purchased on Wednesday and why is my phone now using my monthly 2GB and not that data bundle? Secondly I would like to know why didn't Prudence log the call? And I would prefer an explanation from her.