ANNOYING MASSAGES FROM MBD

I HAVE ONCE USED MY CELL NUMBER TO INFORM MBD TO STOP HARRASSING MY AUNT WITH CALLING CLAIMING THAT SHE OWES VODACOM SINCE FROM THAT DAY MBD SAVED MYNUMBER AND I HAVE BEEN RECEIVING MASSAGES FROM THEM AT MY WORK CELL NUMBER I CALLED THEM MORE THAN 10 TIMES TO REMOVE MY NUMBER FROM THE LISTING AND THEY KEPT ON TELLING ME THAT THEY WILL REMOVE MY NUMBER HOWEVER THAT WENT IN VAIN, ON THE 13TH OCTOBER I CALLED MBD ONCE AGAIN AFTER RECEIVING THE MASSAGE AND SPOKE TO THE LADY CALL FEZEKA I REQUESTED FOR THE MANAGER AND SHE REFUSED AND SAID THERE IS NO MANAGER SHE PROMISED TO GET THE NUMBER REMOVED AND CALLED ME BACK AND ASK MANAGER TO CALL ME TILL TODAY THERE IS NO CALL AND I ONCE AGAIN RECEIVED THE MASSAGE

CAN I ASK THAT MBD REMOVE MY NUMBER FROM THEIR SYSTEM AND STOP HARRASING ME I DO NOT KNOW THE PERSON THEY ARE LOOKING FOR AND I KEPT ON TELLING THE ONE THIMG OVER AND OVER AGAIN