MTN CUSTOMER SERVICE ON THE MONTH TO MONTH DATA CONTRACT IS PATHETIC

HI I HAVE TAKEN OUT A MONTH TO MONTH LTE ABOUT 5 MONTHS AGO CONTRACT WITH MTN, NOW THAT I WANT TO CANCEL HE CONTRACT ,IHAVE THE RUN ABOUT FROM THE ACCOUNTS DEPT TO THE CANCELLATION, WHEN YOU LEAVE A ALL BACK FOR THE MANAGER TO GET BACK YOU BUT NO AVAIL I HAVE BEEN INCONTACT WITH THEM FOR THE PAST 3 MONTHS WITH NO CALL BACK- SERVICE PATHETIC, AND WHEN I FINALLY RETUREN THE ROUTER TO THE STORE , TO CANCELL IT TAKE 30 DAYS, BUT IN THE MEANTIME AS A CUSTERMER IAM LOSSING MY CURRENT DATA WORTH R269 AND THEY DEBIT GOING TO DEBITED FOR ANOTHE MONTH , SO WHEN ASKED ABOUT REFUND THEY SAY THEY TCANT HELP IT WILL BE ALSO LOST- TO ASK MNT IS THIS FAIR TO TREAT YOUR CUSTOMER WHO IS 59 YEARS OLD