The debt collection agency Collection House will report a 13 per cent increase in net profit for the 2010/11 financial year, the company said in a statement yesterday.The company increased debt account purchases by 20 per cent through the year.Collection House reported a 21 per cent increase in net profit for the 2009/10 year, but had revenue growth of just one per cent.This result will be the first for Matt Thomas, who took over as chief executive at Collection House last September.Earlier this month, Thomas announced that the company would be launching two new businesses: a training company, Collective Learning and Development; and a risk management advisory company, Cashflow Accelerator.