I could remember a day I was expecting alert from bank and this mtn keep messaging me. I keep checking my phone in hurry to check if it was a bank alert but unfortunately MTN was at work.
Finally, MTN Nigeria has complied with NCC and made available a means for subscribers to opt out of this unsolicited SMS marketing. You can now stop this advert sms from unknown number's like 5000, 50017, 5836 and others.
To stop receiving those pesky advertising messages from MTN Nigeria:
Dial *123*5*4#Press 1 to Opt out of mobile advert sms. You would receive a message open and Reply with Yes to opt out of advertising.
After that, you should receive a message saying that you have successfully opted out of Mobile Advertising. Hopefully, this would be the end of those unneeded advert messages from MTN.
Don't forget to share to your loved ones. ???