Scoopa needs help

Our boy has been sick at the vets for days.
he needs to go to Sash for more specialist care. We can not afford this. He is such a wonderful dog so gentle, loving and playful. 
Always been well looked after and up to date with everything. He is only 4 and deserves more.
The current vets he has been through are baffled and have done all they can do. 
His white blood cells are down so low and antibiotics aren’t helping.
PLEASE we need your help.