That's unprofessional.How much money are we talking about here and how many investors they had outside of Europe? Aren't they suppose to mention or create an agreement which prohibits investing from the customers who don't belong to the European territories?
Did you try their support? If there are similar cases and high in number, you guys should start a group or something discuss a solution. I firmly believe if they hadn't mentioned while the time of the ICO about European restrictions, you guys deserve to get paid.