I really don't have anything to add to what everyone else has said.

I would also have to agree to get a solution to this problem as soon as possible, which in this case is to accept the replacements. This way you can get back to your business.

I would research other companies that offer the same or comparable products (depending on your situation) and look into their return policy for faulty items.

Although these are hard to find, you could become part of a buying group, which are groups of businesses that order large bulk items from the same company.