Bitbank Warns Japan Users Over Polymarket Linked Account Suspensions

TLDR

• Bitbank warns Japan users over Polymarket-linked account suspensions.

• Polymarket transfers may trigger restrictions under Japan gambling laws.

  

• Bitbank says suspended users could lose trading and withdrawal access.

• Japan’s crypto exchanges tighten checks on prediction market activity.

• Polymarket faces wider scrutiny as Bitbank flags legal risk in Japan.

Bitbank has warned users in Japan that Polymarket-linked transactions could trigger account suspensions under gambling-related concerns. The exchange said deposits or withdrawals tied to prediction market services may breach local legal standards. The warning adds pressure on prediction markets as global regulators increase scrutiny.

Bitbank Flags Prediction Market Transactions

Bitbank said prediction market services allow users to trade on elections, sports results, and other future events. These platforms often use cryptocurrencies, and many operate from outside Japan. Bitbank said usage from Japan for financial gain may create legal risks.

The exchange named Polymarket as a typical example of these services. It also referred to other prediction market platforms with betting features. Bitbank urged customers to avoid transactions connected to these platforms.

Bitbank said it may suspend accounts when it detects deposits or withdrawals linked to such services. The exchange said related or suspected services may also trigger restrictions. However, Bitbank did not cite a direct government order behind the notice.

Account Restrictions Could Block Core Services

Bitbank said suspended users would lose access to several major account functions. These include logins, crypto deposits, crypto withdrawals, yen withdrawals, and trading services. As a result, affected customers could face full operational lockouts.

The company also said it would not cover damages caused by suspension measures. Users can contact support if they believe Bitbank restricted their accounts by mistake. The exchange said it would investigate such cases through its inquiry process.

The notice reflects a stricter compliance stance among Japanese crypto platforms. Japan has not issued specific rules for prediction markets yet. Even so, Bitbank’s action shows exchanges may act before formal guidance arrives.

Polymarket Faces Wider Regulatory Pressure

Polymarket already lists Japan among restricted jurisdictions in its access policy. The platform has also signaled interest in Japan, which raises compliance questions. That expansion goal may now face more pressure from local legal concerns.

Prediction markets have drawn broader attention because users wager on real-world outcomes. Regulators often view these services through gambling, derivatives, and consumer protection laws.  Exchanges handling crypto transfers may treat related activity as higher risk.

South Korean authorities have also investigated domestic Polymarket users over possible gambling violations. United States regulators continue to monitor prediction markets for fraud and manipulation. Against that backdrop, Bitbank has moved to limit exposure before disputes widen.

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