Hi Jen!
I was diagnosed in August 2012 and had fasting blood glucose of 18. I refused metformin, immediately went low carb. It worked for me, lost weight, Hba1c came right down and at a review in March my DN said I was no longer at diabetic levels - we both knew that did not mean I was no longer diabetic! just in control - and could come off the list. Was also moving house and changing GP shortly afterwards.
I was absolutely delighted to come off their lists! I was told by both old and new surgeries that I could have an Hba1c test on request, and recommended at least yearly. Don't see why the surgery should get money for something I am managing myself. I have seen with members of my own family what happens when you follow all the NHS advice, and trot along to all their checks, appointments etc. you just get worse and as they expect you to deteriorate, so you do. Hopefully, by maintaining excellent control like you already have, there is less likelihood of retinopathy, neuropathy etc.
We are all different, and I was certainly given the choice by my DN - I could have stayed on "the list" had I wanted to. After all care is supposed to be patient centred. Hope you will get what you want.