After a year when its bad debt expense doubled, Cash Converters has reviewed its credit assessment processes and applied tighter credit criteria.The company reported revenue growth of 8.2 per cent to A$218.6 million for the 12 months to June. Gross loans increased by 27.9 per cent to $220.5 million, with the biggest increase in its vehicle finance business, Green Light Auto.However, it made a loss of $1.7 million, compared with a profit of $22.5 million in 2017/18. A $16.4 million payout to settle a class action contributed to the lousy earnings.The bad and doubtful debt expense was $60.4 million, an increase of 90.5 per cent from $31.7 million in 2017/18.In response, the company has invested in data analytics "to provide deeper insights into the propensity of customers to repay". The review also assessed the recoverability of loans in arrears and determined that a number of accounts should be written off.The vehicle financing business has overhauled its risk scorecard and product pricing to ensure an acceptable risk profile as it expands its broker network and continues to grow the loan book.Acceptance rates were down in the second half of the year.The company also announced yesterday that its chief financial officer, Martyn Jenkins, had resigned, effective immediately. Group financial controller Katrina Grose will act as interim CFO while the company recruits.