Airtel is currently giving out whooping N25,000 Worth Airtime to call all network and browse when you register your Airtel SIM that needs re-registration which was barred for 30 days. If you have old or new Airtel SIMs that have been abandoned for long, I advise you to take it out and go to any nearest Airtel registration center to re-register your SIM card, and your Sim will be credited with