受取人の口座は開設されていますが、AML・制裁等の理由により凍結されています。
AC06 is more serious than AC01 or AC04. The account exists and is active, but is blocked by the beneficiary's bank — typically because of an AML investigation, a court order, a sanctions freeze, or a KYC re-check.
The sender cannot resolve this. The beneficiary must contact their bank to understand and resolve the block. In sanctions cases, funds may be frozen by the regulator and not returned.
送金人は返金を追跡してください。受取人は自分の銀行に連絡してブロックを解除する必要があります。
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→ Full AC06 reference (English)