When withdrawing money to buy U within China, be sure not to leave the platform.
A fan was scammed out of tens of thousands of dollars like this a couple of days ago, and it's very hard to recover such losses. Always conduct C2C transactions on the platform.
The trading of virtual currencies between you and the merchant is a voluntary transaction between the two of you, similar to transactions between you and a store on a certain shopping site.
However, the situation is different in Hong Kong as it is C2B. In foreign platforms like Coinbase, Bitfinex, and Hashkey, your withdrawals often occur between you and the licensed institution.
For example, in Hong Kong, there are OSL and Victory Securities, where you can directly complete such an exchange with the institutions. In this case, it is C2B (the C2B model is legitimate because it defaults the funds through licensing!).
So, this problem rarely occurs. Currently, we have not yet supported opening, so it is normal to be stricter than outside, just like many people can't buy U due to restrictions.
Please follow and support.