Airtel has introduced double data offer, Airtel in a message sent to customers when you subscribe for 1,000naira for 1.5GB by dialing *497*6#, you will get 3GB of data I.e 1000naira for 3GB. I think you might have know all about it, so let's go on activating it.
How To Activate Airtel Double Data Of 400MB, 1.5GB, 3GB, 7GB And 10GB
Firstly, you have to dial *144# and if it open for you, it means you are eligible for the offer.
Then, select 1, 2, 3, 4, 5 to activate any data plan from the displayed options of;
400MB For 200Naira valid for 3days
1.5GB For 500naira valid for 14days
3GB For 3,000Naira valid for 30days (month)
7GB For 2,000Naira valid for 30days (month)
10GB For 2,500naira valid for 30days (month).
After successful activation, you can go on and enjoy your data on anywhere in the internet because it works perfectly without restriction.
I hope this helps?