Glo made a unique way to make the recharging of airtime easy on their line. To recharge your Glo line, simply dial *123*pin# while you can buy data directly with *233*pin#.

Glo made it known that when you top up or buy a new data bundle with *233*pin# you will get an additional 385MB when you recharge up to #1000.

How Do I Check My Glo Balance?

To check your Glo account balance simply dial *124#, a message will pop up on your device screen, kindly enter 1 into the screen, and your airtime balance will be displayed to you.

SOURCE: How to Recharge Glo