Vodacom Ghost contract on single device

Its now been a year that Vodacom has been charging me for two contracts on a single device because of their admin error. Two attempts to have them sort this out (EC-0XPU-1FMERS , S3-9j92e-e8h2b) has gone on deaf ears and nobody is coming back to me but they continue to charge me . Considering that MTN was fined for this kind of ******** activity is there any ICASA representative that wants to take them on.