They hold the legal right to close an account, but they have to give reasonable notice, usually 30 days for you to find new banking arrangements. If they freeze it, it's likely because they believe something fraudulent is occurring. However they are still legally not allowed to remove funds from your personal account at the request of someone else, only you can give permission. If anything occurs outside of your permission you can take them to court and sue them for a good amount, they will also get fined by regulators. Speaking from experience, most people never give consent for a third party to take money from a personal account, whether the payment was sent intentionally or unintentionally.