the behaviour of some short term payday lenders is unacceptable the financial ombudsman service saysmore than doubled over the last year. this was in spite of the fact that one of the biggest providers, wonga, went bust. here's our personal finance correspondent, simon gompertz. with a loan from wonga.comn... waqa collapsed partly due to the weight of compensation claims. if it hadn't claimed there might have been even more gripes from borrowers, saying no—one checked if they could afford a loan or they won't given the right information. the financial ombudsman service said it had 40,000 complaints about pay—day loans in the year to march, up 130%. its also concerned about fraud and scams, up 40% to 12,000 complaints, including a sharp rise in people tricked into transferring money out of their bank accou nts transferring money out of their bank accounts what meanwhile, the most complained about financial product ever, payment protection insurance, oi’ ever, payment protection insurance, or ppi, saw a slight fall to 180,000. for a lot of people it's about being lent money that's unaf