Code to link my mtn line to my nin July 8, 2019 16 32 64 128 What code can i use to link my mtn line to my nin Code to link my nin number to my mtn line Code to link up my nin to my mtn line Ussd code to link my nin to my mtn line Short code to link my nin to my mtn line What code will i use to link my nin to my mtn line