. Shipper claimed that your staff arrived their warehouse late so they claim for occurred cost.
2. We do not know that they prepare for this or not.
3. I propose your solution to my manager. He advised that we can help you to absorb this charge in case that it is our error but this case it is not our error.
Advance acted as middle man only and we already required grade A container to you.For this case, we cannot absorb this charge.
4. For your cost is against with shipper requested. As we mention, we have no benefit with this issue.
If you need to negotiate with occurred cost, I may recommend you to compromise with shipper directly.