***UPDATE: IT HAS BEEN DISCONTINUED***
I saw this through the comment section and I decided to post it here perhaps it might be helpful to someone.
We are all aware that Airtel is currently dishing out 4.2GB for N200 but not all users are qualified. Try the guide below as posted by a user and do let us know if it work out for you.
How to be Eligible for Airtel 4.2GB for N200
>>Migrate to Airtel Trybe by dialing *312# and Select 1
>>You’ll receive a confirmation message welcoming you to Airtel Trybe
>>After which you should send GET to 141 via SMS.
You should receive a congratulation message, if not then you are not qualified.
Dear Customer, Congratulations! You can enjoy 100% DATA BONUS ANYTIME EVERYDAY FOR THE NEXT 3 MONTHS when you buy data bundle of N500 and above
>>Load Airtel recharge of N200 by dialing *143*pin#
You’ll be credited with 4.5GB immediately.
To check your data balance, dial *223#
I’ve tried it and the procedure works out well… so if you are not qualified, kindly try it out and give us feedback.