Thanks for your feedback! When we learned that the buyer had a bottle leaking, we explained the improper operation to the buyer, and also wrote in the instructions in the accompanying water cup how to correctly use the hydrogen-rich water cup. After the Alibaba platform processing, the buyer has not provided high-definition uninterrupted video according to our operation method. Keep Posting repeat videos like the one above in the comments section. Before delivery, we send the products to the customers for confirmation. Each cup is tested for water leakage before delivery. If all the 72pcs water cups are leaking as the buyer said, we will not always remain in the store with the best sales volume of hydrogen-rich water cups on Alibaba platform. The buyer maliciously initiated a no-return request for a full refund from the seller, and Alibaba eventually ruled that the seller did not need to compensate.