We were pleased to see Nicky Morgan MP, chair of the Treasury Select Committee, write today to the chairman of LINK, the group that manages the UK’s ATM network, about their proposals to reduce the interchange fees that banks pay to businesses providing ATMs. I think this is important for convenience stores and the eco system of local businesses that we trade alongside, and I’ll explain why, but first, here’s a very quick primer on how the ATM system works (if you know all this, skip a paragraph).