They damaged the computer, then tried to return it to OP (probably hoping him/her wouldn't notice the damage they caused). This is completely unacceptable. A replacement is definitely in order.
If the shop ever dings my car I'll be sure to ask for a new one....I'm pretty sure they would repair it though :roll eyes:
Why do you assume the store dinged it AND knew it was dinged AND then "tried to return it probably hoping..."