Dear, Thank you for your feedback.After review, what you said is not true.Logistics is out of our control, and copper pipe problem was not our fault.But considering your shopping experience, we still refunded you $13188. Shipping: We chose a fast shipping option and insured the goods.Brackets & cables had missed by U.S. airport, but we have resolved it. Our packaging met export standards, but road bumps damaged cartons. Once informed, we quickly contacted the insurer. But, you haven't provided photos/vids of damaged units, the claim process was hindered. Copper Tube: The PI contract clearly specified single copper tube specs. and we shared photos for your review after production.After delivery, you demanded double copper tubes and made us cover high air freight, which was unreasonable. We offered 2 choices: ship half by sea or refund half the cost. You chose the refund and signed Refund Agreement. Attached are the partial screenshots,We remain committed to serving every customer well.