In this guide, we'll walk you through a simple and quick process: purchasing airtime.
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1. Open Cardtonic app on your device
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2. Tap ''Bill Payment''
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3. Select ''Buy Airtime''
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4. Choose your network provider
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5. Enter the recipient's phone number
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6. Input the desired amount
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7. Click purchase
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8. Confirm with your four-digit PIN

Congratulations! Your airtime purchase is successfully completed