My husband was on his business trip to Argentina the 2nd time. He was advised by the Argentinian consulate that he don't have to reapply a visa to enter Argentina. But while he is was in the Argentina custom. He was stop and refuse entry. They says all Argentinian consulate is rubbish. SO they arrange the next plane for him to fly back to USA.

He don't speak spanish. This custom officer give him a punch on his face for not speaking spanish.

I want to know how to make a proper complaint.

Please advise.