I've raised £400 to Please Save Taffy Cat who needs emergency vet treatment and won't be seen of I can't pay £168 consult+ £100 bloods + medication

This morning Taffy became extremely sick and when touching lower abdomen he is extreme pain. He needs to be seen by yets asap,.
Sadly I have to pay upfront or they won't see me die to extreme late past payment.
I am on benefits and I would have had consult fee but lent Money to friend couple weeks ago who was in desperate need and sadly he died last Friday.
I never ask for help or charity but I can't lose my boy who is 4 and my little man who has helped me deal with loss of my children.
I can't bear to see him how he is and I can't help him when I know he is in pain.
It affects my mental health issues where I blame myself for not being good enough to provide etc and takes me down a very dark route where I think I should not be allowed pets and I am such a failure and have to take calming medication to stop from harming myself.
I can't lose my baby and my best friend in the same week it's just to much for me.