They made terrible color mistake in printing, but do not take any responsibility. I couldn't receive sample although they insisted it should be sent. I couldn't help going ahead due to the time restriction for my defense. When I received copies, I found that some color graphs were messed up. Red lines become blue and vice versa.
They attributed it to my fault that I didn't carefully check when they send me a digital proof. However, it shouldn't make sense I check every pages. For this color error, how can I image they would make such a stupid and rudimentary mistake?
This is an extremely sneak and creepy strategy to put all the responsibility to the customers and to hide their mistakes.