what is the information required, is it to do with your medical history.
Has the GP said why they are refusing to release the information?
This is about getting the job done.
I would ask the GP what regulation / legislation prevents the release of the information.
However, I would also provide the surgery with a form of authority to release copies of your medical notes to the Visa doctor.
This avoids the GP from having to write a letter but gets the notes/information where it needs to be.
I wonder if the surgery either want a fee or are concerned about legal liability for the report and are concerned about whether they are covered.
What about simply instructing a doctor at a private hospital to do it. It will be quicker and very possibly cheaper than pursuing the surgery through a solicitor
I agree but they have not have a legal obligation to provide a letter so you cannot force them however unreasonable they are being.