When i rang nationwide today they didnt know you could withdraw sterling from an atm machine in turkey.their rules and regulations state they will charge commission on foreign transactions on any currency other than sterling.i was told there would be no charge for sterling but their staff were not sure.I have sent them an email so i can get it in writing.And no,i am not kidding myself.I work in the banking sector and sometime the left hand doesnt know what the right hand is doing.