twice to mtn store over 48 hours for sim swop

So mobile got lost went in for a sim swop, then said 2 to 24 hours ... 24 hours later i called and the said it failed (one consultant even said the sms didn't come through. and i said really i dont have a active sim, how can it. i had told this to the person who helped me) so they said i must go back to the store which i did. Got a reference no called in and a manager said she will override it manually and yet again 24 hours later again still waiting. like really can it be that difficult to do a sim swop. In December my sister waited a full week and we book on contract #MTNFAIL