Hope you can get a Libre on the NHS,
@evecainx - in the meanwhile though, I'm wondering why your fingers are hurting so much

I usually test 8-10 times a day, sometimes more, and mine don't hurt at all. Are you testing a lot more than that?
If not, maybe your lancing device is turned up too high - you might be able to turn it down (I use it on 2 most of the time - that's intended for children, but my fingers would hurt a lot too if I used it on 3 or 4).
And are you only testing on the sides of your fingers (alongside, but not too close to, the sides of your nails), not in the pads? It will hurt a lot more if you're spiking the pads, where there are nerve endings, rather than the sides. It will also hurt more if you keep re-using the same fingers - I alternate the sides of all of mine, so I've got 20 to circulate through.