It's easy, simply text Myapp to 131. You will receive a text message with below content:
"Dear customer, You now have a bonus of 100MB valid for 3days..."

If you get an error message, just resend the text or try it on another sim.
mymtn free accumulated 1gb

HOW TO ACCUMULATE MyMTN 100MB TO 1GB
Due to a loophole found, this free 100mb data can be increased up to 1000mb. Simply follow the below steps to do this...

Read more from http://nairaclass.com/forum/index.ph...92.msg1955#new