I really do appreciate the time you have taken in your reply,
I am 'unofficially' in remission with my T2 .. as my DBN is adamant no one with diabetes can ever go into remission !!!! I am just a deluded fool and will NEVER be able to live a 'normal life' again !!! She also declared that the Newcastle diet was a load of rubbish and LCHF will quickly kill me .. yes nice lady

o yes and i am tagged by her as non compliant as I test my own bs !!
I stay with this Drs because the heart nurse is brilliant ... she can see the change in my health and is very supportive.
I tried to report a Dr in this surgery some years ago when my legs became very swollen and I need help// he told me to get a hobby and pushed me out the door ... When I tried to report this I was told I have no witnesses .. so that told me where I stand in this Drs . ..
I must just be one of these people with doormat stamped on their forehead ... As other Drs have ignored my heart attacks, unstable angina and I also suffered a few TIAs that were also brushed off as stress until I found a Dr that listened to me. Sadly that Dr is 600 miles away now !!!
I think as the wife says .. I have no Drs now .. will see my heart nurse .. but will not bother with any of the rest ..
My life is to short to take on the system .. I am able to self fund my testing and can control with diet .. If this stopped working I will have to find a different Drs, as the one I have will be overjoyed at my downfall .. so would not go to them.
Thank you again for the advice. The wife is good at the unemotional and hard-hitting letters ... but as I said it got no where last time

so will not waste her time going through that again/
Enclave - I would suggest you need to reset your default setting with this practise. You say you won't leave, because you rate your heart nurse, and that's great, but you are endorsing one person and rejecting a whole bunch of others.
That they don't "get" LCHF or recognise your self proclaimed needs to be treated as valuable knowledge, and used to your advantage.
From time-to-time, unfortunately, we all need to access healthcare. Your GP and the support services at your practise are your gateway to the wider healthcare system, unless you intend to pay a wholly private, non-NHS GP for consultations fr referral. There are plenty private GPs around, but they aren't cheap, the following that up with the private Consultant's fees and tests, and that adds up to a fair bit of pocket money! You need to be able to have a civil dialogue and negotiate with your gateway providers, even if you want minimal interactions with them themselves. The time to be be repairing burnt bridges isn't the time you need a Consultation for something outwith a GP remit.
We all think it won't happen to us, but these things crop up when we're least expecting them, and often have financial implications of their own - whether it be the passive costs of attending appointments (fuel and hospital parking, for example) or loss of income for yourself or anyone who goes with you.
I would urge you to build yourselves a strategy for helping them tick their boxes.
As for your diabetic nurse; she's probably towing the practise party line. If you have taken yourself off Metformin, without any discussion (I said discussion, not permission) she will see that as a non-compliance. That she doesn't know of your agreement with your heart nurse and the statin is very unfortunate, but a change to medication, advised by your heart nurse, will be recorded on your notes, and I assume it has been removed from your repeat prescriptions? Could you have urged her to review your notes, and maybe help her out by guestimating when it probably might have been recorded?
Have you considered that your diabetic nurse may be looking at you and is genuinely worried for your health? Before her, she may consider, she sees a patient, diagnosed with T2 diabetes and with a history of CV disease, who is not taking his diabetes medication, and furthermore isn't taking his statin either, and he's combative when she's trying to do her job. It's just a thought.
You could consider still writing to your GP informing him of the of the misunderstanding surrounding your statin and ask him to confirm this is documented clearly in your notes, and that he further confi,rms to you, in writing that she has been informed of this position. If you don't try to make a difference, your interactions will always be thus. To be honest I find it's easier to get things done when these people think you're charming. I don't always feel it, but an appointment isn't a lifetime.
I'm not the most patient, or tolerant of people when my hackles are raised, and poor old MrB sometimes gets the fall out, but a developed charm offensive can pay dividends sometimes, in so many areas.
Good luck with it all.