BRISBANE TIMES - Australian and European regulators are sharing information about the market power of big tech companies ahead of a pivotal court ruling. The test case in the Netherlands will decide if Apple must overhaul its App Store across Europe to comply with competition laws. Martijn Snoep, chairman of the Authority for Consumers and Markets in The Hague, imposed sanctions on Apple last year after Match Group lodged a formal complaint over the 30% fee on all in-app purchases. Snoep said the problem was global and required regulators to share information so they could protect consumers. Apple outlined some changes to its payments on June 11, but is fighting the Dutch regulator through the courts because of the sweeping impact on its revenue if it loses, which means the case could go to the European Court of Justice in Luxembourg. South Korea has also acted against Apple over its payment services and the United Kingdom's Competition and Markets Authority said in June it would investigate Apple and Google over cloud gaming restrictions and app store payment practices.