The European Court of Justice has ruled that EU citizens can now sue the troika if they believe their fundamental rights have been violated by austerity.
http://www.euractiv.com/section/all/news/austerity-hit-citizens-allowed-to-sue-troika-ecj-rules/
http://www.euractiv.com/section/all/news/austerity-hit-citizens-allowed-to-sue-troika-ecj-rules/