It's scam site. Supplied defective and untested products. When you make a complaint to the product then the game of attrition starts. First they want the image or video of products. Then offer such a new product with half the price, then offer this new product to the third of the price, etc.
It is a very sophisticated scam. If you agree to pay extra for the same product or cancel all, in both cases Chinabuye won and you do not have a product that works or money.
In my case it was a mini wireless keyboard $ 22.19 and on the end I gave up of all.
Please, do not waste your money, time and nerves on that site.