My money just magically disappeared

On 26 Feb I bought R275 airtime at the ATM. I get home and want to convert to data, only to be told I have insufficient funds. So off to Vodacom Canal Walk I go. Here I get told by Nazeem, the bank never released the funds & get sent to my bank. The bank comes back and says the service provider confirmed that they got the money. So I call Vodacom again. Then I get told that I did get the airtime & that they can see data was used. So needless to say, they get away with it as I cannot prove otherwise. And then they have the cheek to send me a questionnaire to ask if I would recommend them to a friend. Hell no! I have two cards, so the first one which runs out is the one that will be replaced with another service provider. Unfortunately the warranty on my phone forces me to stay with Vodacom. But the moment this warranty runs out, will be the day I leave Vodacom completely. I am not going to allow people to ***** from me