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Have them check the keyboard for miss-alignment. Keyboard is not supposed to touch the screen. Clearly, the keyboard is up to high probably set like that from the factory. Have them check and replace the keyboard.
 
My 2015 15" MBPR is carried in my Tom Bihn Synapse 25 laptop backpack daily. The same bag I carried my Mid 2012 MBPR in. No sign of scratches.

Not mentioning your carrying method limits the available feedback.
 
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