Millions of workers have not been credited with nearly £1.3 billion they paid in National Insurance (NI) which could mean reduced state pensions if they fail to act.
Hundreds of thousands of taxpayers who have moved home over the past few years must tell the taxman or risk missing out on a rebate that could be worth hundreds of pounds .
The Financial Services Authority (FSA) has ordered one of the largest ever compensation payouts from a single firm to hundreds of thousands of pension savers.