A payment record can identify a transaction while leaving its relationship to the IRS balance unclear. Keep that question connected to the evidence available.
Explain the source details accurately
Retain the received reference, date and period the confirmation actually identifies. A bank movement and an account explanation can provide different context. If you are uncertain how the amount relates to the notice, say so without deciding its treatment from timing alone. An older transaction should remain distinguishable from an expected arrangement, making a proposed review question useful while gaps in account evidence remain openly identified.
Ask what further work would clarify
Explain the current balance and why this transaction seems relevant. Ask which account information the service would examine and what it costs. Keep the purpose of additional evidence with your note, preserving original sources. Official IRS payment information can help frame procedure questions while actual account context determines what needs review. A conversation introduces the issue without itself establishing a payment relationship or an IRS decision about the amount.