Silly misstep occured !!!!

Actually I was filling my form session 2 nd I filled as it was in session 1 . (Am from obc ; yadav) My mistake is that in session 1 I gave exam from general cateogray cuz at that time I hadn't cateogary certificate nd though I mentioned that all document I filled for sessio 2 detto as it was in session 1. Soo I filled again general cateogary mistakenly and I submitted while now I have obc certificate. Now payement is required 1000 if I paid now 1k And in correction windows if I reformed it then for obc fee is 800 . So will it be return or is it possible to change cateogray even ? What will be idk really, Plss guide what I should do?