Help with Latte's vet bills

My cat Latte has recently been taken very ill, with a blocked bladder.. and he means a lot to me and my mother, who is housebound, so he's sometimes her only means of company, and I want him to get better.

But his vet bills are going to be very expensive and we've already been quoted in the £600+ mark. And due to me and my mother being cronically ill, we can't work, so £600 is a lot..

So I'm asking very thankfully for donations, even if they are small. Every little thing would help.

Thank you.