So I just got this and thought to share. MTN is giving out free airtime but only to their Music+ subscribers.

All you have to do is to download the app and log in. (Here's the quick link to download https://play.google.com/store/apps/details?id=com.mtn.softclient.music.baseline ,or search for Musicplus on Google Play)

Once you log in you get free bonus points that you can exchange for airtime

You can also set the phone to play songs to get extra points to exchange for more airtime.

Don't forget to login after installing, otherwise, you won't get the reward.

Thank me later.