Identify the account in the first explanation
Use (855) 494-5639 with the notice available where possible. Say which tax type and period it describes, then explain the balance, filing, or payment concern. If that identification is uncertain, make it a question for review instead of guessing. Mention any related personal issue without assuming the same task or process covers both.
Ask how the service is scoped
Discuss the records needed, covered accounts, responsible person, and proposed terms. Understand any requested authority for the work. Ask why any business statement or return is needed for the account under review. Confirm the recipient and exchange method if documents are required later. Keep official account instructions available, distinguishing a planned task from evidence that a report or response was actually completed.