Tmall scammers
As many people have written here, they are scammers. They want to extract extra money from you. You will get orders to your store. So that you can't fulfill them without investing. Even if you are waiting for money back from your customers. Then they'll block you from the store. Without the investment to fulfill your orders, they won't unblock you. Without the possibility of a refund. You'll be introduced to a pretty lady from China. Be careful. It's a scam. Too bad I was late to read the feedback. Stay away from Tmall.