Pension contribution in Tax year 2019-2020

Hi, I have come to realise that there is a pension contribution I made in the tax year 2019/2020 which was not claimed for. Is is possible to claim it at this point in time and if so, how do I go about doing it. Many thanks!
 

Hi, Unfortunately, we can only accept claims for four years previous to the current tax year. As of this tax year, we can accept claims for as far back as 20/21.
Thank you.