Tax Code Change

I received an email from HMRC to the effect that my tax code had changed. I was instructed to log into my account, click on the PAYE section to find out why it had changed. I am 67 going on 68 and approaching my third year of state pension. I filed my last 8 years tax returns online since retiring. I am not working so in effect little has changed. Anyway, I did as requested but when I clicked the PAYE box a message flashed with a technical issue and I couldn’t access. Can I be guided by HMRC on what to do next please?

Hi Eddie67#,
If you are unable to view your tax code online you will need to contact HMRC to review:
Income Tax: general enquiries
Thank you.