Please save Mimi the cat

Hi, I am Mimi and I am a 4 year old male cat. My previous owner didn't want me anymore so my current owner adopted me around 6 months ago and we've been getting along great since then!
However, a couple weeks ago, I started having urinary problems. My owner is a poor college student and has already emptied out his entire savings, paying over $2,000 for my treatment up until now. The doctor gave me some bad news today and said I have bladder stones, which need to be removed surgically and can cost $2,500-$3,000. My owner does not have that kind of money anymore and we would appreciate all the help we can get!
Thank you!