The case affects card payments by tourists in the UK and corporate card holders.
The class action seeks compensation for UK businesses which were charged Multilateral Interchange Fees (MIFs) for accepting payments using corporate credit cards, as well as for credit and debit cards used by overseas visitors.
The MIF is a percentage of the charge vendors must pay. A spokesperson for law firm Harcus Parker said: “The average vendor would not necessarily know what percentage they have to pay. Our case is that there should not be any MIFs.”
