Oyo Rooms — Checkin denied and asked double money

My brother booked oyo in Hisar for exam from oyo app.
Details - Booking Id*: X9ZO2757
Date : 02 Mar - 03 Mar
Hotel : Blue Moon, Hisar Harayana

He booked for 400rs and owner asked 800 after making him stand for an hour agreed for 600.
Door latch broken - zero security
Ac not working - could not sleep, lot more

I could not sleep whole night worrying safety of my younger brother.
Apart from full refund of 600, I want apology from that guy as my brother had to leave 6am itself because he could not sleep.
Nevertheless I dont get any positive response in next 4 days unfortunately twitter facebook and consumer court would be last resort