When you order goods, it will most of time come with afew defective items. And when you make claims, they will refund if you ship back. Most often, the shipping cost cannot cover cost of money refund or it does not make sense. If say the seller didn't confirm receive your shipping items, you end up paying shipping fee and don't get refund and paying for seller's mistake. They should change representative who make assessment. Firstly, ask them to take Maths class to make sure they make decision that makes business sense. A Joker online shopping website with luring traps of dirt cheap price with scam sellers.