mixup错误，问题
housekeeping家务保洁服务
make matters worse使情况更糟
upgrade升级
be fully booked=be all booked up
deluxe room豪华房间
How to complain effectively at a hotel
在住酒店时，如何进行有效的申诉？
Identify the Problem
明确问题
Make sure you can explain the problem clearly and concisely. Don’t exaggerate; be honest and tell it like it is. Get evidence if you can. A photo can be a powerful image.
确保你能够清楚一致地阐述问题。不要夸张，要忠于事实，发生了什么就讲什么。如果可以的话，要收集证据。一张照片就可以是有力的物证。
Time Your Complaint
及时申诉
Complain as soon as you know there is a problem. Don’t wait until the next day or when you are checking out. If there’s a long line at the front desk, you may want to delay until a quieter time so attention can be paid to your problem.
一旦你发现问题，立刻申诉。不要等到第二天，或者到你要退房时才申诉。如果前台排了很长的队，你可以考虑推迟到一个更安静的时机再申诉，这样的话你的问题能获得重视。
Complain in Person
当面申诉
Don’t call the front desk with your problem. Go down in person and talk face to face. Explain the situation and let them know what your expectations are.
不要给前台打电话来解决问题。亲自下楼，当面申诉。将情况解释清楚，并告诉他们你想怎样解决。
Remain Calm
保持冷静
Be polite and calm. Even if you feel frustrated or angry, never raise your voice or lose your cool. A smile goes a long way toward helping people want to help you.
保持礼貌和冷静。即使你很纠结很生气，也绝不要提高声调或者发脾气。一个微笑会让帮你解决问题的人更想要帮助你。
Source: https://www.tripsavvy.com/hotel-complaints-procedure-1895657