Noticed tonight that the hotels.com app was showing a promo of 8% off all bookings when booked via the app. Promo code MOBA8. Need to manually enter the code in the booking screen.
I cancelled a same priced hotel on booking.com and rebooked on hotels.com and saved a few pennies. Hopefully others might find this promo useful also.
Better off using AUPAY10 for 10% off. Coupon.