Hello,
I have found gps tend to follow a consultant's guidelines. I see a gynae privately in London. An initial consultation costs around £200, so def not in the thousands. I would suggest seeing a private consultant, getting a letter sent to gp with prescribing dose which states it should be used long term and the gp should fall into line. It may help to get a private consultant who also works on the nhs, so the nhs surgery is inclined to potentially trust them more. I realise it's infuriating, but I think you would only have to see them once, worth the money if u can afford it rather than fighting often unwinnable battles with stuck in their ways gps. That said my private gynae only prescribed 3 times a week and meno brain meant I forgot to ask about this last time I saw her. It may be because I have endometriosis.