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Crypto exchange froze withdrawals: causes and next steps

What to check when Bybit, Binance, OKX, or another CEX restricts withdrawals, what evidence may be requested, and how to answer support.

August 17, 2026 · 9 min read

Identify the exact restriction

“Funds frozen” can mean a security hold, a review of one transaction, a withdrawal restriction, or a full account review. Copy the exact notice and preserve the case number. Avoid opening several duplicate tickets.

Why an exchange may restrict withdrawals

Common scenarios include a recent password or 2FA change, unusual activity, incomplete verification, a source-of-funds request, sanctions exposure, or a counterparty flagged by the platform. A restriction by itself does not prove wrongdoing.

What to prepare

Reply only through the official exchange interface or a verified support address. Build a consistent timeline of deposits and withdrawals.

  • Account UID and support ticket number.
  • Exact restriction notice and date.
  • Transaction hashes and wallet relationships.
  • Source-of-funds evidence when requested.
  • A concise explanation of counterparties and transaction purpose.

When a specialist is useful

A specialist can help structure evidence and draft a response when support asks follow-up questions or several wallets and services are involved. The account holder still sends the message from the registered email. No one can guarantee that an exchange will lift a restriction.