Crucially though, the guidance does not permit the relaxation of fingerprint checks - indeed, they were not introduced until long after it was written - and does not allow any reduction in checks for non-EEA nationals.
As well as inter-bank fees paid by cardholders from non-EEA countries, the Commission said the probe would look at rules that obliged merchants to accept all types of Mastercard cards, even if some of them incur higher charges.