Just had a look at the nationwide site and they still quote 'commission-free card use abroad' for Current account users in their account benefits section and makes a point of not charging for use of ATM's (though the ATM owner may charge you for it's use-it should advise you of this when you use it).
I think these forthcoming charges are only for the Credit card, NOT the Debit card

scratch that...their 'foreign transactions' section does mention debit cards from 1st June.
Looks like I'll be looking for another bank then.

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