Multiple billing on data bundles

I bought bundles on Thursday, and they didn't load on my phone. I bought again on Friday thinking that Thursday transaction didn't go through, nothing loaded. <br> On Saturday, I called Vodacom, explained my story. The lady that I spoke to told me that she doesn't see any evidence that I bought bundles. She told me that she will load the bundles from her site. I advised her that I do not want to be charged extra because I keep on buying and data not loading. She confirmed that I will not be billed for the other transactions as there is no evidence that it went through, still no bundles were loaded. I called Vodacom again on Saturday evening and was told me that the bundles keep on deactivating themselves and he has no idea why it's happening. He then escalated the case to \back office"and sms'd me the reference number \""S3-8EP3C-CFTTX\"". <br> The following day"