How can I change my Re code?

Long story short I was sent to med-hold in BMT for hemorrhoids. I was told that the condition was undisclosed and I would need to file for a waiver. My waiver was denied and I was sent home with an entry level separation, erroneous enlistment, RE code 4c, along with medical/JFW on top of my discharge coordination package. I talked to a recruiter today who couldn't understand why I was given that code. On my MEPS paper work DD From 2807-1 box 13 question f I clearly stated I've had the condition happen before. Its both of our understanding that MEPS is to fault, I was never trying to hide the condition anyways. How can something be undisclosed when the box is checked with an explanation on the next page? My recruiter said he was going to make a few calls this weekend and asked if I could do some research myself. I found a DD From 293, but was unsure if it would help my situation at all. All I want to do is to be in the military and this looks like my last shot. If anyone has any insight It would be greatly appreciated.