Thank you everyone for all the amazing replies. There is so much knowledge on this forum. It does appear that a few tweaks are needed to my online prescriptions. My GP surgery is only a very small surgery so I do wonder whether they've just not had a lot of experience with type 1 diabetics. Can someone let me know how I change over to the reusable pens with cartridges as I would like to do this. Can I just ask the GP surgery to swap me over or does it have to come from my diabetes team?