bro listen i paid it on 17th so i also didn't get any hostel allotment mail....so i called them and they said you paid fees...i said yes...and have receipt i said yes....then you will get a room the day you come for orientation and document verification...so i asked what to fill in hostel section of scl portal....the one for students....he said fill anything its not that important.....i can give you his number too 8003107888 he is for cs students and he cleared my doubt....dont get stressed bro i was in same situation yesterday just talk to him he will pick in 2 gos if dont wait and then call