I agree, you should have returned this thing at the first sign of damage. For UPS to say it's damaged, then have these problems right out of the box, it clearly must have taken quite a shot in shipping. No way to test for that during assembly, is there?
Get them to build you a new system and quite trying to make a good system from what UPS did.
Get them to build you a new system and quite trying to make a good system from what UPS did.