PAYMENT MADE BUT CELL NR NOT YET ACTIVATED

My partner made payment of R3699 on 25/08/15 at Mtn Blm. Then on friday (28/08/15) we went to get the number reactivated, the agent did Rica the nr and said it will work after an hour or so. On which we stayed ther at MTN for more than 50minute the agent trying to get hold of mtn call center, on which he called differwnt mtn nrs he can think of. Later MTN said the nr is activated. But still ots not working.