There are, and both Visa [0] and MasterCard [1] have both recently been in trouble for it. Instead of it being a specific maximum, however, it must be "reasonab

There are, and both Visa [0] and MasterCard [1] have both recently been in trouble for it. Instead of it being a specific maximum, however, it must be "reasonable" and allow for competition. The network also chooses the cheapest routing, by default. [0] https://www.accc.gov.au/media-release/visa-undertakes-to-address-competition-concerns-over-debit-card-payments https://www.accc.gov.au/media-release/visa-undertakes-to-add... [1] https://www.accc.gov.au/media-release/mastercard-in-court-for-alleged-misuse-of-market-power-over-card-payments https://www.accc.gov.au/media-release/mastercard-in-court-fo...