Free Airtime give away from Mtn after just completing a survey for their MTN customer service week 2016 and all you have to do is just put your number after filling the form and N500 will be yours.
PROCEDURE ON HOW TO GET AWOOF FREE N500 AIRTIME FROM MTN
1) Simply visit this Link
2) Then fill the Form there and Input all your Details Correctly including your MTN mobile number and other things also tick the current tariff your MTN sim is in..
After filling the form, Simply click submit and expect your N500 Airtime within 24Hours or less to your number. Simply drop your comments for further guide if you confused. Thanks..