Our company has been specializing in the production of metal parts for over 30 years, with a good team and quality management system. Many overseas customers have cooperated with our company for more than 20 years. We produce completely according to the customer's drawings and provide reasonable suggestions for the drawings with design defects provided by the customer. We have confirmed with the customer that we will not bear the shipping cost for making free samples. After getting the customer's approval, we started to remake 10 samples. The customer will not pay the shipping cost and is requesting a refund of $200 after 10 samples are finished. This is unreasonable.