Data bundle depleted

First I purchased a bundle on the 5th of May 2015, do date I doubt the bundle was loaded even though the money was deducted 250 MB not received. This morning I purchased a power bundle 100MB, got a message that it was loaded, 5 minutes ago I had to purchase another one. For some reason my data is just gone. I used some of it in the bus, but saying that I used up all the data is ridiculous. I need my account checked and a recon done. I have been with Vodacom since forever, I worked for one of your call centres and since I left the thought of changing networks has never crossed my mind. At this stage I think I need to rethink that.