Instalment Untraceable

On the 2nd of November 2015 I made a payment from my bank towards my vodacom account. To my surprise early this month (feb 2016) my services were suspended and when I enquired I was told that I still owe an instalment for Oct/Nov 2015. I then made few calls to vodacom and I was taken from pillar to post. I spoke to a lady that asked me to forward her proof of payment that I made. I did and on the same day they unlocked our services. Next day services were suspended again. When I called again they said that I made payment to a wrong account. That I did not add \i\" in the account account number. The rest of the numbers were correctly vodacom account numbers. Now when I go to my bank branch they say they can reverse the money because it is over 3 months but definitely the money was within vodacom. So I need Vdacom to trace this money and give it back. I need this issue to be escalated to the highest possible person in the company and give my money back. Please sort this out ASAP!!!!"