Payment missing that Ive made on my Vodacom account

I previously complained about payment I’ve made in August to my Vodacom cellphone account. Vodacom contacted me immediately. Not a very friendly person spoke to me because I complain via hellopeter. He told me I wiil be contacted very soon by an account lady to get AGAIN all the proof of payment. He also said that the accounts are handled by an Indian company and it will take time to solve the problem. Since then no word from Vodacom. This case of my just disappeared. We as customers are just a number of all the other clients. If you don’t pay your account in time. Then Vodacom is on you case to pay them. But when you pay your account and trying to get that payment allocated then you are not at all important! My bill is not in arrears. Vodacom is owing me the amount I paid now double. Because if I didn’t pay that bill I couldn’t make any phone calls?