Hi,
Do the lancets perhaps say which devices they're compatible with on the box? My surgery is good at changing my prescription for cheaper alternatives, but they always state they are still compatible with the devices I have.
Also, when I've changed glucose meters my diabetic team have automatically told my GP to update my prescription, but when I've then requested to stay on the old lancing device (smaller and more comfortable) they were completely fine with that. So it is worth contacting your surgery if you'd like to stay on your old lancing device.