No hotels at those prices, hostels/inns only. Hotel rates start at 5000 and up, fluctuating depending on the season. Most hostels are more or less the same (i.e. clean but small rooms), just don't stay in Chungking. You can try looking at rentals on Airbnb, they're usually more spacious and cheaper, with added amenities like fridges, washers/dryers, kitchenette etc.