The holiday season is already here and I am sure you will use more data than usual. The truth is, this season, normal data will not be enough for you; Therefore, intensification is required.
You can get 16GB for N3000 on Airtel, and also 9GB for N2000; It all depends on the plan you choose. If Airtel's network is strong in your area, you can try or simply opt for Glo Yakata Data.