Thousands of women owed an average of £13,500 each after being underpaid state pension are urged to check if they can claim payout amid warnings process to trace all those affected could take six years
State pension underpayments were revealed after a reader asked This is Money and MailOnline s pensions columnist Sir Steve Webb for help
Our investigations revealed many women had been underpaid state pension
OBR documents yesterday revealed the £3bn cost of fixing underpayments
Underpayment affected married women whose husbands reached pensionable age before 2008 and who were unknowingly entitled to an enhanced pension
Our investigation alerted the DWP to systematic underpayment of pensions