Charging me for simcard thats included in my accound package!

HELLO I HAVE BEEN STRUGGLEING WITH MTN OVERCHARGEING ME NOW FOR A WHILE, EVERYTIME I QUESTION IT, I GET TOLD A DIFFERENT STORY BY EACH PERSON SPEAKING TO WITCH ONE EXCUSE WAS VAT INCREASED! I SAID R200 on each phone, Impossible .WICH I GOT TOLD YES. SO 2 WEEKS BACK I QUERIED IT AGAIN AND SUDDENLY A WHITE GUY FROM MTN BILLING DEPARTMENT HELPED ME WICH THEN TOLD ME AFTER I EXPLAINED MY PROBLEM, HE COULD SEE IM BEING CHARGED FOR A SIMCARD THATS ACTIALLY INCLUDED IN MY ACC PHONE PACKAGE I TOOK. NOW IT HAS BEEN 2 WEEKS AND STILL NOT SORTED BUT THEY TOLD ME 24 HOURS?... I HAVE BEEN PHONING THEM EVERY SINGLE DAY JUST TO HEAR THAT "THE DOCKET IS OPENED AND SOMEONE IS STILL BUSY WITH IT, WE WILL CALL YOU BACK AS SOON AS ITS SORTED" .... IM STILL WAITING