Revolut, the troubled UK fintech, is facing a lawsuit for facilitating a £600,000 fraud, according to a report by This Is Money. Terna Energy Trading, a company listed on the Athens stock market, has initiated legal proceedings against Revolut, claiming that the fintech firm violated money laundering regulations by failing to prevent a "fraudulent" transaction that took place last year. The court battle will present another challenge for Revolut co-founder and CEO Nik Storonsky.