Really this is appalling by Birmingham. So a letter from 2023 is no good and they want a recent one...
It's standard for GPs to charge for a non-NHS letter and £25 is a minimum I think.
Getting one will save you £10 as the discounted PCN penalty is £35. Assuming Birmingham accepts it.
Alternative: take them to the tribunal.
I would also be making a complaint.
Wait for other views.
