Or UPI in India: https://en.wikipedia.org/wiki/Unified_Payments_Interface
So to answer your question: with law on your side. You limit price gouging, and mandate interoperability with a cheaper system.
It's not comparable to VisaNet.
Or UPI in India: https://en.wikipedia.org/wiki/Unified_Payments_Interface
So to answer your question: with law on your side. You limit price gouging, and mandate interoperability with a cheaper system.