Multiple packages delivered to wrong address and disappeared. Ali Express was extremely unhelpful in assisting me to figure out how to hold Uni Uni, the shipping company, accountable and to receive a refund. It seems like Ali Express was being PURPOSEFULLY unhelpful and vague in the refund process. the regular customer support staff is great but the refund department staff are downright terrible and have no customer service skills. They tell you to get special sealed/stamped proof documents from the post office even though USPS has nothing to do with this. I called the post office and they were not able to help me.