Unhappy customer

I would like to lay a complaint about the service received from eithad airways. I had made a booking in june and have received a confirmation that i would receive a stop over accommodation at AL AIN Palace ( booking reference EYH144845) for 2 nights

I have just been informed now that this has been cancelled due to some block out and due to the fact that i booked with an agent. Regardless of booking with an agent i am still a customer of etihad and i feel that its not ethical to advise a client at such a late stage of travel that the stop over has been cancelled.

If it was a block out period or they dont honor stop overs with clients booking via agents then they shouldnt give confirmed bookings of hotels as i havent budgeted for this at such a close stage of my travel. If i have to change my flights it would also cost me quiet a substantial amount as i have 5 passengers with me.

I emailed their customer service who advised me to email abudhabistopover which I did but haven't received any feedback

My booking reference is MM4KON