In May 2020, I made a withdrawal of U to my bank card from a certain platform and then transferred it to a certain v and a certain stock. A few days later, while paying at the supermarket, I suddenly found that: third-party payments were unusable, and my bank card was frozen — even the third-party was completely frozen!


Later, I contacted the police in Anhui and learned that the U was linked to involved funds. Although I had never engaged in any improper transactions and was just trading normally, the police said, 'Trading cryptocurrencies is not protected by law,' and to unfreeze it, I had to compensate the victims. At that time, there was still other money in my card, and I could only accept it. After handling it as required, everything was unfrozen within a few days.
In the past few years, I have encountered pitfalls and summarized some withdrawal experiences to share with everyone:

  1. Prioritize applying for the Mastercard Hong Kong card: there are some thresholds, but it truly achieves '0 frozen cards.' Many experts and I have used it for a long time; it is suitable for international students, cryptocurrency players, foreign trade personnel, etc. The fees are negligible compared to the safety it offers (equivalent to an overseas card, avoiding domestic funding chain risks).

  2. Must-see for withdrawals from traditional exchanges:

    • For large transactions, be sure to verify the merchant's funds: the funds should have been stable for at least 3 days; do not engage with those that haven't been stable.

    • When trading, clearly request 'only accept real-name merchants.' If they are not real-name, report them and keep a record of the conversation (don’t be afraid of trouble; this is key to protecting yourself).

  3. Be cautious with offline withdrawals: unless you know the other party very well and trust them completely, ordinary people should stay away; there are too many pitfalls that are hard to explain.


Trading cryptocurrencies is not protected, and you need to be vigilant when it comes to withdrawals. The Mastercard Hong Kong card is the most stable method I have used so far. Feel free to reach out to me if you have any questions.