I Recommend this article for those using java phones although any other phone users may find it useful.when you recharge with 100naira,you are being given 10mb to browse for a week and this is not always enough even for chatting alone.This below simple trick entails how to get 100mb with 100 naira.
To benefit form this,you must be on mtn pulse,dial *406# to migrate
After you must have exhausted the MB you are being given and you wish to get another MB,simply dial *406*1#, you will be given 5mb which will cost you just 5 naira.
After exhausting this 5mb and you wish to get another one dial *406*2# to deactivate, then dial