Vodacom is *****ing my money

I loaded airtime via Absa's internet portal the amount was deducted from my account and the air time was not loaded on my cell phone. When I contacted Vodacom's call center the operator informed my that it not their concern. I do not understand how one pays for a product and do not receive the product and the service provider tells you it is not their problem. This is blatant *****ING.