Correct an episode order

for https://www.imdb.com/title/tt0139803 ep 36.4 and Ep36.5 are in the wrong order (.4 is after .5) how do i correct the order. I have made 2 requests to change ep .4 to be ep.0 (So I can re number 5 , then when it has moved clearing .5,  move 0 to .5. How do I do this or request this? Thanks