I am sure I am speaking the mind of a lot of Nigerians right now, for so long I have tried to Opt Out/deactivate/cancel all the annoying SMSs I get from MTN. Just when I get an SMS hoping its a Credit Alert, I see some SMS from our dear MTN, anyways to cut long story short, check below for the codes.
To opt out of all MTN useless adverts, dial *123*5*4# and follow the instructions.
To opt out of all MTN useless adverts, dial *123*5*4# and follow the instructions.