one management level suggested shorter time frame, it seems to me. (didnt sound like normal/published 5 hour to me.) concierge is not management and cannot say anything other than published. this is the problem with not dealing with management. the question of what the REAL minimum time frame is needs to be directed at management, with negotiating taking whole situation into account.

management are the decision makers (varying by position) while anyone else may have a little bit of flexibility given to them, but they cannot make executive decisions or promises.