Users of online gambling services within the EU can sue the betting operator for reimbursement of their losses if such gambling was prohibited in their home country when they placed the bets, the Court of Justice of the European Union (better known by the acronym ECJ) ruled on Thursday.  Its rulings on this and another question — that member states are within their rights to outlaw or restrict such gambling individually, even though EU law permits it — paves the way for a German citizen seeking reimbursement for losses incurred when such gambling was illegal in their home country.  The fact Germany 's laws have since changed, meaning such gambling is now permitted, has no bearing on the case, the ECJ ruled .  What was the case about?  A German resident is seeking compensation in domestic courts for losses incurred on online slot machines and lottery prediction betting between June 2019 and July 2021, when such gambling was not legal in Germany.…