All we are getting reply from Candidate Care is from the GUY of PROMETRIC, and not NEETPG or NBE.
What they say is any settlement regarding the category or spelling mistake will be addressed after the registration process is over. And they will just forward your query to CONCERNED DEPARTMENT of NEET or DNB.
So what i think is someone from delhi, should go to NBE Office and ask for it face to face to any of the In-charge Officer of Exam Conducting body.
Who personally goes there and ask, post the progress in reply.