An account explanation should be tied to the received letter and relevant evidence. Ask which facts the proposed service would examine and why.
Keep the account claim connected to its source
Identify the amount, period or instruction you want explained and ask what evidence could clarify it. A possible cause can remain a question while the actual received text stays available. Request an understandable description of how the review uses return or payment information rather than treat a confident summary as the entire account picture. Missing support should remain identified, including a relationship that the available source does not establish.
Clarify the review and responsibility
Ask what work is included, what further information is needed and who would handle a response if one is proposed. Understand charges and separate permission before proceeding. Keep the source of any explanation so a later discussion can return to it. An introductory review question helps define useful assistance while formal action and any IRS determination remain distinct matters, with their own applicable account requirements and evidence.