RUDE CONSULTANTS

I WAS CALLED EARLIER TODAY BY THE LADY CALLED KATLEGO SAYING THAT I OWE NASHUA MOBILE,I ASKED HER SOME QUESTION AND TOLD HERE THAT A PERSON CAN USE YOUR ID NUMBER AND COMMIT ***** AND SHE WAS SO RUDE TO AN EXTENT THAT I HAD TO PUT THE PHONE DOWN AND CALLED THE NUMBER SHE CALLED ME FROM AND WAS TRANSFERRED TO THE SUPERVISOR WHO EXPLAINED TO ME SOME DETAILS AND HE TOLD ME THAT NASHUA MOBILE HAS BEEN SOLD AND THE BOUGHT THEIR BOOK SO THEY WERE DOING RECOVERIES AND I TOLD HIM I SETTLED THE ACCOUNT IN 2005/6 AND WE DISAGREE,HE THREATENED TO GARNISH ME AND I ASKED ON WHICH GROUNDS, AND I TOLD HIM I CANNOT PROCEED WITH THIS CALL.HE CALLED MY LAND-LINE NUMBER AND ASK TO SPEAK TO MY HUMAN RESOURCE DEPARTMENT AND ASK HIM WHY AND HE SAID IT DOES NOT MATTER AND DROPPED THE PHONE.I TOOK TIME ONCE AGAIN AND CALLED THEM AND WAS TRANSFERRED TO THEIR SUPERVISOR AND EXPLAINED EVERYTHING TO ME AND I ASKED HIME IF YOU SAY I DID PAY IN 2005 WHY NOW IN 2015 AND YOU ARE SAYING THE LAST PAYMENT I MADE WAS R1350 HOW DO I OWE THEM IF MY MONTHLY INSTALNMENT WAS R185,HE JUST SAY PLEAS MADAM TRY TO MAKE ARRANGEMENTS WHICH I REFUSE.CAN ANYONE FROM THIS COMPANY CONTACT ME FROM THIS COMPANY PLEASE