That is pretty brazen, isn't it.
We've got a cat with an undiagnosed problem, a specialty vet would probably confirm or deny some things. For now, we work with our local vet and do trail and error. We have another one that is having some thyroid problems...one who is chunky...one who has hip problems and has problems jumping. Our "normal" one? She's elderly and is a bit neurotic.
Sorry, OP, I think it's tactless to appear on a neighborhood forum without nary an introduction and expect money from people. I have sympathy for your cat most decidedly, your cats parent seems to be a bit delusional though.
If anyone wanted to donate to our vet fund, it would be greatly appreciated. Besides the vet costs, we also have specialty food we buy. We also lost a stray cat we adopted this past year, he was expensive and we had him about a week :(
[edited] animals and pets are my soft spot. It might go easier for you to have a yard sale or something other than asking strangers for money. While I have no doubt your cat needs vet care, I also have some people in Nigeria requesting my attention and sadly enough, they are as real to me as you are.