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.
(..) and whatever that giant magical crystal-looking thing is made of. This is the heart of what storks were put on this Earth to do. This is our mission. We pride ourselves on customer service. Well, this is a family that never got the baby they asked for. Make a plan. Stick to the plan. (..)2016 Storks