3 YEAR if have been struggeling with them

I have been struggling with my account since I got my contract. Every month I make a payment and the funds are allocated incorrectly and then I get calls and Sms saying that my account is not paid and this continues throughout the month till late at night. I have been to the Vodacom branch in Key West for their assistance and they submit all the proof of payment but some idiot at Vodacom just goes and closes the query every time without fixing the problem there is R1210 that was never allocated as a payment in 2014 already!!!!! And still has not been loaded and this has also resulted in every payment since then being loaded wrong. I have literally thousands of mails and proof and I am fed up! They just don't care there is no customer service. I want something to be done to the consultant that just keeps closing the query and to Vodacom.