Ni credits not working during lockdown

Hi, Can I claim NI credits retrospectively for when I was unable to work during Covid lockdown periods? I had just retired and contracted Covid in Nov 2019 (before we knew it was Covid), and have had long Covid symptoms since then. I was unable to register for jobseekers due to centres being closed. I have no children and was living off my workplace pension.

Hi cercis,
You will need to contact the Department for Work and Pensions.
National Insurance credits from benefits are awarded by DWP and not HMRC.
Please find the contact details for DWP below:
Number  0800 055 6688
Text Relay  18001 0800 055 6688
Welsh  0800 012 1888
Overseas  +44 (0) 0191 218 7652
Open
8.00am to 6.00pm Monday to Friday
8.00am to 5.00pm Monday to Friday for overseas calls
Thank you.