NI credit for years in Canada 🇨🇦

My pension is due next August. I will be short 2 years for full pension. When I moved back to England from Canada in 1994 I was told by HMRC that at pension age I could get credit for years in Canada as my 4 daughters were born there and qualified for child benefit as soon as we moved back to England. My question is, is this still the case and how would I go about applying for those years? What proof would you need as this was before emails etc, but i have my 4 daughters Canadian birth certificates. I was told the Canada and England have a reciprocal agreement regarding this issue. Please let me know if this is the case and could I apply now for the credit as I am getting close to pension age. I only need 2 years although would have many more qualifying years if my Canada years are accepted.,Thank you

Hi,
Reciprocal agreements between counties are considered when you go to claim your UK state pension, there are no credits applied but they are taken into account.
Please contact the International Pension Centre at the Department for Work and Pensions to discuss the tax years involved for when the agreement commenced. If the years involved are not considered, you may have the option to increase your UK state pension that they will also advise you on.
Number - +44 (0) 191 218 7777
Open - 8.00am to 6.00pm Monday to Friday, closed bank holidays and weekends
Thank you