limited donor hair

[PANTHER3324]

I have had four transplant surgeries and about 4500 grafts. My last procedure they said they could only do 600 grafts on my next surgery. They are saying that my donor hair is limited. I need probable about 1500-2000 grafts to thicken my hair. Do I get another opinion or what. I had these transplants procedures at the hair transplant center in tulsa ok..Any suggestions would be appreciated