Cash Converters chief financial officer Michael Murphy has handed in his notice just four months after his appointment. Murphy, who went to Cash Converters from Commonwealth Bank, will leave the company in September. Katrina Grose, who has been the company's group financial controller since 2015 will take over in an interim capacity.The company gave no reason for his resignation after such a short tenure.His resignation follows only weeks after the departure of chief executive Brendan White, who was in his role for less than 12 months.Sam Budiselik, who joined the company in 2016, has taken over as CEO.The company's board is chaired by Stuart Grimshaw, whose pedigree includes a senior executive role at Commonwealth Bank.Cash Converters has a troubled history, although it is hard to see how that explains these sudden departures. Its most recent financial report details a loss of A$19.4 million for the six months to December, after it paid $42 million on class action expenses. It is the second year in a row that the company has been tipped into loss by class action payouts. In the December 2018 half it reported a loss of $5.2 million after paying out $16.4 million.And in 2015 it paid $20 million to settle a class action over fees and charges. The claim was that deferred establishment fees charged on loans was not lawful.