Vodacom poorest service

After I published my frustration with vodacom not paying back my monthly installments which were being debited from my account, I received a call from a vodacom agent on the 15th of November and she assured me that I will receive the money between 7 to 14 days. As I write now I have not received the payment, this company frustrates me as no one is saying anything, what stops the payment????