park, thank you very much for your willingness to take the time to share your thoughts, your feedback will motivate us to keep improving. Also really appreciate your recognition of our service. I'm really sorry that our product didn't meet your expectation in this cooperation, and I'm sorry for wasting your time and money. I understand your frustration very well now. We are really sorry for your unpleasant buying experience. In your case, we have already made improvements and can guarantee that this problem will not occur next time. We also support video communication with you to check the quality before shipment. If you are willing to trust us again, we will return the sample fee for the next bulk order. We hope we can try our best to make up for your loss.