AML anti money laundering risk assessment

I am a very small accountancy provider I have been contacted by hmrc to provide AML the following was sent to me by Hmrc

: This letter is a request in accordance with Regulation 46(4) of the Money Laundering, Terrorist Financing and Transfer of Funds (Information on the Payer) Regulations 2017 (MLR2017), for documentation to ensure that A-Z Accounting Ltd was complying with the Money Laundering, Terrorist Financing and Transfer of Funds (Information on the Payer) Regulations 2017.
Please provide the following documents:
• The business risk assessment
• The business policy, controls and procedures document
• A full description of the business activities
If any of the above do not exist, please confirm in writing or by email.