Why do you think they've done nothing except "whine on facebook" and what action, exactly, would you advise them to take? If they sue Braintree in the US, the

Why do you think they've done nothing except "whine on facebook" and what action, exactly, would you advise them to take? If they sue Braintree in the US, the legal costs will be insane (especially by Serbian standards) and it will virtually ensure they won't see a penny until years later.