Interchange. While this article is more US specific and Monzo is obviously a UK bank, take a look at https://bam.kalzumeus.com/archive/debit-cards-are-hidden-f

Interchange. While this article is more US specific and Monzo is obviously a UK bank, take a look at https://bam.kalzumeus.com/archive/debit-cards-are-hidden-financial-infrastructure/ https://bam.kalzumeus.com/archive/debit-cards-are-hidden-fin...