Puddles I had the same issue as jillydoll.
Gp said only consultant could prescribe it . I'm under nhs gynae consultant. Gp told me to get the consultant to put in writing everything I need or might need going forward e.g increase of dose, adding testosterone.
Interestingly when the nurse phoned me from the gynae clinic about an appointment a couple of days ago I mentioned the issues with GP and she said. "Oh dear these GP's. We are constantly facing issues around this"
Just to let you know you are not alone In this. I don't yet have the answer. I wish I did.