I deposited through cryptocurrency. Their deposit page didn't specify which network channel to use; it only provided a QR code and an account number. I made the payment using the QR code. They refused to deposit or refund my money, claiming they haven't integrated that network. I consulted the customer service of OuYi, they informed me that such funds would still reach the other party's account albeit without transaction notifications. Based on the feedback email at that time, the recipient did receive it, but later denied it. This is simply outrageous.