A client has a question about the bill Interesting Concepts LLC ยท DueSparrow A question about the work, amount or approval needs a conversation about that issue. Keep it separate from routine payment follow-up so a reminder does not ignore what the client has already told you. [ ] Summarize the issue neutrally. [ ] Mark the invoice Disputed. [ ] Record the next action and review date. [ ] Resolve amount changes in the source accounting records. [ ] Update the balance and timing before resuming follow-up. Working notes: Prepared as a blank checklist. Your checked items and working notes stay with your copy.