The supposed clampdown on the selling of payment protection insurance (PPI) is having little effect so far, with frequent mis-selling and a low rate of successful claims, according to Citizens Advice Scotland.

The Office of Fair Trading in February referred the selling of PPI to the Competition Commission, while the Financial Services Authority has been probing the market since last year and in January levied a hefty fine on major provider Capital One Bank.

Earlier this month consumer group Which? reported that consumers are being tricked into buying expensive PPI when taking out a personal loan over the phone or internet, as a result of some providers adding PPI as a matter of course during the sales process.