make official complain to headquarters and consumer tribunal...demand for brand new car or 1mil compensation for psychological damage

lol, I dont even work in Honda. Its a futile attempt anyway since our consumer law is so weak. Chasing after the company wont give you any resolution. From the way you post, I can see you are either still studying or haven't bought a car before. I have been down this road many times and this kind of thing dont just happen to Honda but also applies to other car make.

You should instead request the sales assistant to allocate the car away to another buyer and then wait. Otherwise, the only option you have is to cancel the booking and incur a penalty fee.