I've raised £500 to Help pay for Thomas Tinkers' vets treatment

My handsome Thomas Tinker is a rescue kitty. He is an adorable sweetheart, very vocal and loving and always ready to give cuddles. That is until his mouth plays up.
Unfortunately he has a severe form of gingivitis which means his mouth feels like it's full of abscesses. There is no cure for this only long term treatment which currently involves steroid tablets daily but when he has a flare up, of which is becoming more common, he needs a steroid and antibiotic injection .
This is all working well for him, and I will continue to do this for as long as he's happy!
However, as you can imagine this is quite costly so I am being cheeky and hoping to ask the kind hearted people of the internet if they would be willing to help a little?
I know it is a big ask and I also know I shouldn't have pets if I can't afford the upkeep but the smile on his face is all the motivation I need! He is a part of our family now and I will do anything to help him.
Huge thank you in advance to anybody willing to help out, Thomas and I will be so grateful!