It is no longer a new thing because Airtel did it then and also MTN even introduced it long ago. But do you think it will work out with the current state of the economy?
Onecard is the company behind this innovation it is a multipurpose recharge card that works on all networks Glo, MTN, Airtel, Etisalat. For more information about one card visit their website at http://onecardnigeria.com to get the airtime.
Beyond the innovation, the question is; how long will N20 and N50 card serve you?