Open your Fingo app, then Click on 'Airtime' icon just below your account balance.
Choose your Network provider. i.e Safaricom/Airtel/Telkom
Confirm or enter the number that you are purchasing the airtime for then click 'Next'
Enter the amount you'd wish to buy and click on " Next "
After confirming that all details are correctly filled, click on " confirm" to proceed to the final step
Enter your 4-digit pin
The Airtime is immediately credited to the respective Phone number.