Mobile Telecommunication Network (MTN is giving free data bundle and airtime to their customers base on your points that you have on your sim card.
Dail; 1) *550#
2) Select option seven 7 ( MTN Rewards).
3) Select option one 1 to check your points balance.
4) Select zero 0 to go back after checking your points balance.
5) Select ninty-nine 99 for more options.
6) Select two 2 (Redeem Points).
7) Select one 1 ( Airtime)
8) Now select airtime equal to your points that is on your sim card. eg, 500 points - 25p, 1000 points - 50p,etc.
9) After choosing airtime equal to your points balance reply with one 1 to confirm the perches.
10) You will receive your airtime successfully after confirming it.