FAQ

Deposit and withdrawal

Why haven’t I received a reply from the blockchain project team?
Published on Oct 17, 2025Updated on Nov 6, 20258
Why can’t I see or use my crypto balance?
Published on Oct 14, 2025Updated on Jan 15, 20262
What should I do if my withdrawal was sent to the wrong user ID (UID)?
Published on Oct 13, 2025Updated on Nov 3, 20257
What should I do if there is a payment due for my ACH deposit?
Published on Sep 29, 2025Updated on Jan 23, 2026
What's USDT0 and how do I use it?
Published on Sep 12, 2025Updated on Jan 20, 202614
Address type upgrade FAQ
Published on Aug 26, 2025Updated on Dec 30, 2025854
How to transfer crypto from Bitvavo to OKX?
Published on Jun 19, 2025Updated on Jun 26, 20255
How to transfer crypto from Coinbase to OKX?
Published on Jun 19, 2025Updated on Jun 26, 20256
How to transfer crypto from Bybit to OKX?
Published on Jun 19, 2025Updated on Jun 26, 20252
Introducing USD deposits and withdrawals
Published on Feb 14, 2025Updated on Dec 3, 20259
How do I deposit USD with U.S. Domestic wire transfer?
Published on Feb 5, 2025Updated on Dec 30, 20256
How do I withdraw USD with U.S. Domestic wire transfer?
Published on Feb 5, 2025Updated on Dec 3, 202510
How do I withdraw USD with Bank transfer (ACH)?
Published on Feb 4, 2025Updated on Dec 4, 202511
How do I deposit USD with Bank transfer (ACH)?
Published on Jan 10, 2025Updated on Dec 3, 20252
Zero-Knowledge Proofs: what are zk-STARKs and how do they work? (zk-Stark V2)
Published on Oct 21, 2024Updated on Dec 12, 202587

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