Have a small set of references nearby
You can begin with the period, notice identifier, and a plain description of the unclear point. Keep the document available so you can refer to its actual wording. If a return or payment record may explain the issue, know where it is stored without first sharing complete copies or private identifiers through an unconfirmed channel.
Ask how the conversation would become a task
Request an explanation of what review is proposed, what evidence would be needed, and who would handle any authorized work. If a service is offered, clarify the terms, fees, and follow-up responsibilities. Note the next action and distinguish it from an official instruction that remains outstanding. The intended tax relief contact is stated in the footer; a first call does not automatically establish representation, submit a response, or determine an available option. The goal is a question that can be examined with appropriate records.