Minimum of #30 Will be deducted from your account and you will be given N33,600 worth of Airtime.
Make sure you are on MTN iPulse or True Talk. its worked on my MTN home zone also. It last for just a week.. If you are eligible.
You will receive it instantly.
Check the balance is *559*4#. -
See more at: http://webwaver.blogspot.com/2015/08/mtn-free-bonus-get-33600-airtime-on.html#more