ACCOUNT SETTLED LAST YR

IM SO UPSET RIGHT NW WITH DIRECT AXIS,I HAD AN ACC WITH THEM WHICH WAS HANDED OVER TO MBD CREDIT SOLUTIONS AND I SETTLED IT LAST 7/10/2014 ,I HAVE A PAID UP LETTER DD 14/11/2014 FRM THEM (TEL ***- FAITH K) NOW THIS MORNING I OPENED MY E-MAILS ,I RECEIVED A LETTER OF DEMAND FRM (VERICRED COLLECTIONS)THEIR BASED IN POLOKWANE TEL :*** NW THIS GUY IS TELLING ME THAT I OWE DIRECT AXIS R1371,83 WHICH I NEED TO PAY ASAP I TOLD THEM TO GET THEIR FACTS RIGHT AS I DNT OWE ANYTHING TO THIS STUPID COMPANY ,THEY FAIL TO UPDATE THEIR RECORDS AND NOW IT BECOMES MY PROBLEMS ,IM SO FRUSTRATED RIGHT NOW AND I NEED TO SPEAK TO THEIR MANAGEMENT ASAP OR ELSE I WLL HAVE TO TAKE IT UP TO THE MEDIA AS I HAVE PROOF THAT THIS ACCOUNT IS PAID UP,,,