Millions of people could be missing out on £200 a week that they are owed from the government.
People who are aged 66 and above and have paid at least 10 years' worth of National Insurance Contributions are eligible to claim their state pension.
However, many people approaching the official retirement age this year may not be aware this contributory benefit is not paid automatically by the Department for Work and Pensions (DWP) and needs to be claimed - or they could miss out on payments of up to £203.85 each week - reports the Daily Record.
