Complain about or complain to?

I complained the noise in our hotel room.
I complained about the noise in our hotel room.

Use complain about to say what the problem is: ‘complain about the noise’, not ‘complain the noise’.

If you mention the person who hears the complaint, use to: ‘I complained to the manager about the noise.’

2

I made a complain about the dirty changing rooms at the gym.
I made a complaint about the dirty changing rooms at the gym.

Use the noun complaint after make a. We say ‘make a complaint about something’, not ‘make a complain’.