The Bank of Thailand says a rule will be published in the Royal Gazette next week barring payment providers from processing payments for grey businesses or online gambling. Cash withdrawals over 1 million baht already need an purpose check (since 1 April), and gold withdrawals over 2 kg (about 10 million baht) must be reported. Banks are also screening 24 suspicious transaction patterns and applying tighter KYC/CDD on account opening. If your business takes card, QR or online payments through a third-party gateway, check that your provider and your customers' activity are clearly legitimate, and keep documentation for large transfers and cash withdrawals.