Help Lucy Get the Surgery She Needs

Our family's cat, Lucy, has not been eating or drinking anything since Sunday. We've taken her to the vet multiple times, and it's now to the point where she requires exploratory surgery near her stomach to figure out exactly what's going on. Unfortunately, we cannot afford the full amount required for the surgery. She's only six years old; she should still have a long life ahead of her. She means the world to me and the whole family. If you could spare anything, it would be greatly appreciated.