Core conclusion:

1000U is not a large amount, but improper operation can still lead to card freezing! Don’t think small amounts are safe.

I. The most dangerous way to withdraw (high freezing area):

Wrong merchant: Chose a merchant with poor reputation on the OTC platform, or the account they paid to has issues (like just receiving dirty money).

Receiving "dirty money": If the money the merchant pays you comes from fraud or gambling, and your card receives this money, if the police trace the illicit funds back to you, your card will be frozen!

A card that is too "clean": If this bank card usually has no transaction flow and suddenly receives 7000 yuan, it may trigger the bank’s risk control, and they will freeze it first (usually for a few days, asking for your explanation).

II. Relatively safe withdrawal method (reduce risk):

Choose the right merchant (key!):

Find merchants that have been registered on the platform for a long time, have a large trading volume, and have a positive rating close to 100%.

Check if their margin is sufficient.

Avoid new merchants with many negative reviews!

Look at the payer: It’s best to have the merchant transfer money to you from a personal account that is clearly registered in your city. Don’t accept money from strange corporate accounts or unfamiliar areas.

Small amounts in multiple transactions (safer): If not urgent, split 1000U into 2-3 withdrawals (e.g., one time 300-500U), with a few days in between. Smaller targets reduce risk.

Use an "active card": The bank card used for withdrawals should normally have a regular flow (salary, small consumption, transfers), don't use a "dead card." If money suddenly comes in, the bank is likely to suspect it.

III. What to do if your card is frozen? (Highly likely to encounter)

Don't panic! Most small frozen cards are due to bank risk control (3 days/7 days), it's not the police arresting you.

Contact the bank: Clarify who froze it? Why was it frozen?

Prepare materials: Organize platform transaction records and chat logs with the merchant (to prove it's a legal transaction).

Explanation (stick to it): Tell the bank this is "money from a friend paying back" or "money from selling second-hand items online." Don’t mention Bitcoin or virtual currencies!

Be patient: It usually gets resolved in a few days.

IV. Ultimate safety plan (suitable for long-term players and frequent withdrawals): Get a Hong Kong bank card (Hong Kong card)

Benefit: Money goes from the exchange → Hong Kong card → then back to the mainland (or cash out). Perfectly avoids domestic card freezing risks! Because the money has gone abroad first.

Drawbacks: Getting a card has some thresholds (may require deposits of several tens of thousands of Hong Kong dollars or buying insurance), and has fees (one transfer costs one or two hundred yuan), suitable for those who withdraw a lot.

Recommended banks: Like Overseas Chinese Bank, Dah Sing Bank (relatively easier to apply for).

V. Lessons learned (must read!):

The money that is "transferred out on the same day it is deposited" is "hot money" and is high risk! Merchants are required to provide proof of transaction history from a few days ago showing that the money has "stayed" in their account, not just received as illicit funds.

Must do a "same-name transfer"! The name on the merchant's payment account must match the name they used for platform real-name registration.

Keep chat records as evidence! In the platform chat box, have the merchant confirm that "the source of funds is legal."

Don't use Agricultural Bank or Postal Savings! These banks have particularly strict risk controls, and the chance of card freezing is high. Choose banks like China Merchants or Minsheng that are relatively more lenient.

Domestic cryptocurrency trading is not legally protected! You have to bear the freezing of cards and losses yourself.

Summary:

When withdrawing 1000U, the main risks are "receiving dirty money" and "bank risk control misfires."

Want safety: Rigorously check the merchant's reputation, use small amounts in multiple transactions, and use a bank card with transaction flow.

For frequent crypto players: Honestly getting a Hong Kong bank card is the way to go. Although it’s a bit troublesome, it allows for a peaceful sleep.

Remember: The ability to safely withdraw funds is your ultimate test of making money in the crypto world! If the money doesn't get into your pocket, it's just a numbers game.

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The market is quiet, retail investors lack confidence, and exchanges are also troubled, but the more it is like this, the more opportunities are brewing. Be patient and wait for the wind to come, don’t mess around.

True winners do not rely on luck or gambling, but on discipline and risk control to survive until the end.