Unable to receive any calls on my new MTN contract

I ported my prepaid Vodacom number over to MTN when I took out a new contract. Since then people are unable to make calls to my number stating that the number you have dialed does not exist. I am able to make outgoing calls.Could my number please be reset on the MTN network by the posting department as this seems to be a porting routing issue ,because the number was ported from Vodacom prepaid to MTN contract. Nobody at my work can get a hold of me and I am unable to receive any calls from other networks. I have tied unbarring all incoming calls as directed by MTN call centre ,but I am still unable to receive calls.