Interlocking Reservation

I am sc general candidate in waiting list, which has 6 vacancies for SC category out of which 2 for women, 1 for ex service man and 3 for SC general candidate. In final selection list they got 2 women candidate, ex service man not available and 2 sc general candidate and 1 seat is allowed to PH(LV). All orders issued as per date but after 30 days PH(LV) candidate which takes seat of sc general candidate did not join then his order get cancelled and form waiting list of PH which has 4 candidate first one is PH sc, and remaining are PH OBC candidates, then waited list candidate PH sc order issued and given 30 days to join but he didn't join and his order get cancelled. Now remaining PH waiting list candidate are OBC and Person didn't join was PH sc now his seat is vacant.. And I am First in waiting list of sc general and asking to convert that PH sc seat which didn't join but they are refusing and saying it will be vacant for next recruitment. Is there any GR for this kind of situation.