I have had many, many, many surgeries and procedures and some of them have been postponed and it is never easy when they are so I feel for you. It's a good thing that the doctor is looking out for you though because some wouldn't and those are the doctors that I don't trust.
One time that I had a surgery was held off was the c-section for my son. They wouldn't do it because my platelet count was low. They wanted to send in a hematologist and I told them just to call my CF doctor because he has dealt with this before when I had needed embolizations. They always gave me FFP (fresh frozen plasma) before a procedure and I told the OB's that this is what Dr. Sexton probably would suggest and to call him. Well, they didn't call him, they called a hematologist. He came in and saw me and said that since he didn't know me, he was going to call Dr. Sexton!! URGHHHHHH! I was so mad that they didn't do that before hand! Everything was planned to happen on Jan 9, 2006, all of my family and a few friends took work off to be there, and I was all prepared (with not eating anything and whatever). By the time they talked to Dr. Sexton and he made the suggestion to do what I had already mentioned (the FFP's), it was too late to do the c-section that day and they held it off!! I was soooooo frustrated! They gave me FFP's the nest day and then took me in for the c-section and everything went fine.
So yes, it is frustrating, and complain away, but like I said, at least the doctors are looking out for us!