You can see the Top-Up section on the top bar.
1 - Click Top-Up.
2 - Choose the payment method you want to use.
3 - Scan the QR code and make the payment.
4 - Fill in the transaction details form (here you can also enter the last 6 digits of the transaction ID for any service).
5 - The admin will review your payment within 5 minutes.
The Top-Up process will be completed within 5 minutes.