See MTN Registration In Nigeria Below…
*. The first step to take is to insert your Mtn sim inside phone >> then goto your Message Box.
*. Now continue by texting BVN , BVN Number , Mother’s maiden name (this must be same as the one you gave during your BVN registration) to 799.
For example:- Text BVN 3957555432 CHIDIMMA in an SMS to 799. That is all, just wait for some minutes and the message will delivered. Congratulation, you have just register your Mtn Sim Card.