Miss Informed People Scaring Travellers

My parents are flying from South Africa to Dublin, it took them over a hour to check in today. As the person checking their passports before they get to the check in desk, insisted that they needed VISA's for Ireland, which they don't. My mom has a British Passport and my Dad a South African passport. They are nervous enough about flying they don't need silly misinformed people freaking them out more. My Dad was ready to turn around and just go home. The staff need to get trained better.