Mo. Rev. Stat. § 361.984: Timely transmission.

1. Every licensee shall forward all money received for transmission in accordance with the terms of the agreement between the licensee and the sender unless the licensee has a reasonable belief or a reasonable basis to believe that the sender may be a victim of fraud or that a crime or violation of law, rule, or regulation has occurred, is occurring, or may occur.

2. If a licensee fails to forward money received for transmission in accordance with this section, the licensee shall respond to inquiries by the sender with the reason for the failure unless providing a response would violate a state or federal law, rule, or regulation.