Remember, the 'customer' is always right. [=never argue with a customer]
He is one tough/tricky 'customer'. [=he is a tough/tricky person]
The company has good/poor 'customer' service.
(..) because I'm a bad investment. The Silk King won't support me because of his business with the Lannisters. Why offend his best customer? And the Copper King offers me a single ship on the condition that I lie with him for a night. Does he think I will (..)2012 TvShow: Game of Thrones Title: The Old Gods and the New Season: 2 Episode 6