Follow this step browse free with 10mb everyday from mtn everyday and browse for free
1st step: recharge with 100 naira and send 104 to 131 you'll be notified when ur 10mb being given to you will expire
2nd step:always check ur remaining mega byte left out of the 10mb being given to you by sending "2" to "131"
3rd step:while browsing, make sure you leave exactly or not more than 1mb on your megabyte left then stop browsing for a while
4th step:If your time is to expire at 10:00am, make sure you stop browsing and continue at 9:30am before your time expire. After browsing for that 30mins don't check ur remaining memory just continue ur browsing... Make sure u don't check ur remaining memory..... Don't send 2 to 131