Surgery needed after NHS mess up

As a self employed musician, it's not easy to make ends meet. I've had a wrist injury for a year now and after months of trying to get help from the NHS with no success, I was forced to go privately. Turns out the NHS have screwed up and I now need to have major surgery on my wrist when the NHS rejected my scans and said there was nothing wrong. The treatment is £3500 and could have been avoided if the NHS had followed this up correctly in the first place and now means surgery and weeks and weeks off work without being able to play. I am asking if anyone is able to spare just a little to help me pay for the thousands of pounds worth of treatment that I now require. It's so upsetting and I'm scared of losing any mobility in my hand. Thank you so much for reading!