Demanding my airtime back

I had a balance of R23 airtime and i bought power hour bundles, and the next minute there was no airtime available and am 100% sure that i did not have the data on. This was an embarrassment for me and besodes that i was nowhere near a place that i could get airtime from. I wanted to make a call yet there was no airtime. Its not the first time, second time that this has happened and I feel like that this is now a *******