What is the 20-digit payment confirmation code on the receipt for?

If, for some reason, our communications system from your top-up location point to your meter failed and your meter did not charge automatically, all you have to do is press button A on your meter then key in your 20-digit payment confirmation code manually on the meter keypad, then press button B and your meter will recognise the amount paid and charge accordingly.

Please note: The code is unique, it will only work ONCE and only on your specific meter. It will not function again if the meter has charged automatically.