You can check your current outstanding amount and make payment online here.
Just enter your 12-digit account number, pay with your Visa/Mastercard and we'll receive payment immediately. That's it!
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You can also log in to SELF CARE
Look at the right side of the page when you log in to Self Care.
PRO TIP : If the amount is (-ve ) that means you overpaid . e.g the picture below