I'd like to ask, can a hotel in Macau book a double room for three people?

be lax

Let me clear your mind.

Macau is a holiday destination, and rooms will not be checked unless there is a major event.

Mainland tourists can stay as long as they hold valid certificates, that is, Hong Kong-Macao Stock Connect, whether as tourists or tenants or directly bring them back to their rooms.

Help yourself.

A double room can accommodate three people.

As long as it can be squeezed out

You want to save money, right?

This trick can be used, but the body is wronged.

Good luck and have fun.