POOR AND PATHETIC SERVICE FROM MTN O.R TAMBO

I HAVE BEEN TRYING TO UPGRADE MY CONTRACT WITH MTN I HAVE BEEN TO THE BONAERO PARK STORE AND THE COULD NOT HELP ME BECAUSE OF THEIR BIOMETRIC SYSTEM NOT WORKING SO I LEFT AND WENT TO THE O.R TAMBO BRANCH WHERE I HAVE BEEN THERE 3 TIMES NO AND STILL NO SUCSESS I WAS THEY DID THE UPGRADE APPLICATION AND SAID I HAD TO WAIT 2-24 HOURS FOR THE UPGRADE TO BE APPROVED, 24 HOURS LATER I WAS CALLED TO COME TO THE STORE AS EVERYTHING WAS APROVED AND READY TO BE COLLECTED I ARRIVED AND SPENT 2 HOURS IN THE STORE WAITING TO BE TOLD THEY HAD TO RESUBMIT THE APPLICATION NOW I HAVE TO WAIT 2-24 HOUR AGAIN BECAUSE OF PEOPLES INCOMPETANCE AND LACK OF AMBITION.THIS IS VERY UNACCEPTABLE AND IS MAKING ME DOUBT ABOUT SIGNING A 24 MONTH CONTRACT AGAIN WITH MTN.PLEASE CAN SOMONE ASSIST IN THIS ISSUE.I HAVE BEEN TO O.R TAMBO MTN 3 TIMES NOW AND SPENT IN TOTAL 4 HOURS THERE WITH THAT COSTING ME R60 IN TOTAL JUST FOR PARKING AND STILL NO UPGRADE HAS TAKEN PLACE.