They paid thousands to give up their U.S. citizenship. Now they want a refund

The price of being an American who lives abroad is often an accent that sticks out, jokes about culinary inferiority and sometimes even issues opening a bank account or buying a home.         

But for some former citizens, the price to renounce that status has long been steep. Now many of them want refunds, filing a class-action lawsuit Wednesday to try and get their money back.