I agree with previous posts to contact the vendor to identify the problem and a solution. However, this is not an unusual issue and typically the way that companies control these problems is by establishing specifications for which the vendor must produce against and quality agreements that vendors agree to. This way the vendors have testing to ensure their packaging meets specifications established with your company before they ship the product. Any product that fails the specification would not be shipped and would be at the vendor’s expense. So it is in the vendor’s best interest to fix any issues and ensure the product meets the specifications.