Bad service

Bad service! I baught 1Gig data for my mother on my vodacom app, they said successful and deducted it from my bank account but she never received it. I phoned a few times and spoke to a consultant. Not one could help me, and they speak to me asif I'm an idiot. They just say they dont see anything. They dont even ask for the order number on my invoice. So I have lost money. Very poor service