Thousands of Brits could be eligible for huge rebates from HMRC due to one huge state pension error.

Women in their 60s and 70s who claimed Child Benefit between 1978 and 2000, after their National Insurance credits – which contribute towards your state pension entitlement when you’re not working – could be entitled to thousands after credits were not correctly transferred.

Until 2010, National Insurance credits were referred to as Home Responsibilities Protection (HRP).

HRP reduced the number…