Need help for my thors vet

I need some extra help with paying the remaining of my thors vet bill.it is very hard for me to ask for help but with being on disablity and Thor getting so sick from just one bravecto chewable that we gave him in june to help protect him.since giving him it he has literally had to fight for his life .the bravecto chewable attacked my boys blood and made his blood count go as low as 3.and it is to be between 500-600.thor has had many blood transfusions, been put on 4 different meds since and has to go back every 2 weeks to get his blood count checked.he is off all meds all except the steroid.this past 6 months have literally been hell not knowing if my boy was gonna make it .the bravecto company only paid 344.00 of my boys 5000.00 and climbing vet bill when he first got sick.
My boy is starting to get slowly back to himself other then he has no immune system at all now and can never have his immunizations anymore all due to the bravecto attacking his blood and i now have to sterilize everything that comes in contact with him now. It is very hard for me to ask for help so please no rude comments I only want what's best for my boy to make him better he's my whole world.i will attach some photos of my Thor before and during his blood transfusions. Thank you in advance any help would be very much appreciated in helping in his vet bill I still have left to pay.