Airtime never credited to account

I bought airtime for 3 numbers on the 23rd October for R275, R110 and R55 respectively. The money was deducted from my account but I never received the airtime. Initially I just assumed the system is slow and I will eventually get credited with my airtime. By the 27th nothing had been received yet. So I called the 082135 number and pressed all the available options and still could not speak to a consultant. (The number does not lead to a consultant). So finally today, 29th October, I head to the Cresta Vodacom branch and the lady there was very dismissive. When she finally felt like it, she also dials 082135 to prove just how silly my query is. After her many failed attempts to reach a consultant she sits on the screen and actually checks what I am talking about against the numbers I bought airtime for. She finds that the numbers were never credited with the airtime. So she tells me to go the bank. I ask her what evidence do I take to the bank to prove that the airtime was never received since I can confirm that the money did actually leave my account. She says there is nothing she can give me I must just go.

I am sitting right now at the bank still without help because the bank says the transaction was successful and I must raise the matter with Vodacom or Vodacom must give me proof that the airtime was never credited so the bank can reverse the transaction.

My biggest regret is that I have just got a Vodacom contract!