MAXONE Hotels in Sleman Regency

I booked 3 rooms for 3 nights(paid), when i reach the hotel, was told the staff input for only 2 rooms, the first solution was told they can refund me as the hotel was fully booked. What????? we total a group of 10 ( 7 adults and 3 kids) after 11 hours on the journey, Just refund??? and even told can refund all if we want How can we find 3 rooms in another hotel on the Saturday evening. Finally they offer us to squeeze in 2 rooms of 10 for a night with free extra beds and free mini bars, and let us have the third room the next day. That's fair enough. Breakfast was very bad, not worth the price, outside the hotel (less than five minutes walk), there are better food stalls and delicious and cheaper. Staffs were very polite, helpful, and friendly.