Booking.com refund process

I booked accommodation only to realise there was very little information provided on the confirmation email.Booking.com provided a phone number that was not in use making the situation worse as we could not access the place a few hours before check in and there was no way of knowing who to contact. Their email states we will let you know if there is a response from owner.I had none.I have trying to access refund tab but booking.com automatically assumes I stayed there.There is no way of contacting the owner and the agent is not helpful either.