I booked 9 rooms in July for a fair in September, 3 days before check in I received a call from Expedia that the hotel had some problems on one floor and offered to move us to another structure of the same chain. I accepted the change and received confirmation from Expedia that ALL rooms were confirmed. On the day I checked in, my room was not available but I had to move to the initial structure. My impression is that the first structure had overbooking and moved us to another structure for this reason, no other reason. I understand during fair time there can be misunderstanding or inconvenience like that, I am a long time traveller and can understand the situation, what's disappointing for me is that when I started compaining that I had a written confirmation for all 9 rooms, the reception of the hotel was extremely aggressive to me, he pretended all rooms were confirmed except mine, which is of course not true. He didn't apologize a single time for the inconvience, didn't even offer a taxi to move me to the other hotel (it was midnight by the time I checked in), all he did was shouting at me, saying IT'S NOT MY FAULT, I can't accept a childish excuse like that from a trained (?) staff in a worldwide hotel chain like Accor, at that time any person to me was representing Accor, so my impression is that the staff is not trained at all, lacking minimum social skills and basic civil rules, or I must think Accor allows staff to drink before starting to work?