Help towards getting Dennis better

Hi my name is Millie and our beloved family cat Dennis has developed an issue with his bladder that has resulted in very costly surgery to try and save him. He cannot go to the toilet, eat, or drink and is extremely lathargic so surgery was the right call for him

He is four years old and feisty as hell. He is a cat-dog personality with endless energy and super chatty and affectionate.

I feel awful to have to ask but any help towards helping our little man would do wonders for my family and give some piece of mind while we pray he gets better.

He is hugely important to our family and very close in particular with my brother, who he sleeps with curled up close beside every night. We lost our cat Martin last summer also so to lose Dennis and leave his sister without any company would be devastating.

Thank you