Seems all Ntwrks now offer welcomBack freebies to encourage subscribers to recharge their long abandoned sims... If U have an mtn/Glo/Etisalat sim U haven't recharged for over 2months now is d tym to enjoy some freebies with it. Jus recharge 100 and above and enjoy WelcomBack data and airtime freebies. I recharged 100 on an Mtn sim I hadn't used since Dec and got over 2gb of data and 20mins of talk time with a msg unlocking more freebies on my next recharge.. I have tried it on Etisalat and Glo and dey all seem to offer same.. Dont know about Airtel though