Vodacom Settlement Letter nightmare

Dealing with vodacom has been beyond disgusting, i have been asking for a settlement letter for a paid up and closed account i had with them 12 YEARS AGO , each phonecall at a duration of 30 minutes , explaining myself to different people everytime, all i ever get is “My supervisor will call you “ Vodacom is submitting false information to credit bureaus , reflecting old info on their debtors age analysis as current information. What **** is Vodacom running!!! I will never ever have anything to do with this company and I strongly advise anyone against having any dealings with them!