I agree with this suggsetion. There is already a scheme to allow the ERP to be paid through credit card, but this requires the owner to register for the scheme in advance. It does not help the cases where the cash runs out unexpectedly, or where the cash card does not work.
We need three ways for people to pay the ERP charges:
1. Cash card - which is now commonly used
2. Credit card - for monthly billing
3. Pay within the day - where the cash card runs out of money