You can load One card’s 20 NGN or N50 recharge with the format *979*PIN#. For example *979*1234567890#.
One Card Nigeria recently introduced 20 Naira and 50 Naira recharge cards into the market and this affordable airtime voucher has really made many Nigerians excited. The card can be used on all mobile networks (MTN, Glo, Airtel, Etisalat) and can be purchased at any local vendor outlets. The card is also available nationwide. One Card voucher can be recognized by their orange and Blue color with ONE 1 Card clearly written.
How to Load ONE card on my MTN | Glo | Airtel | Etisalat Line