Hidden damage: hand off a repair supplement without losing the trail

1. Freeze the estimate version you started with

Save the initial insurer estimate, the shop estimate and any authorization you signed. Note which document each person is discussing. When someone says “the estimate,” ask for its date or version so you are not comparing an initial assessment with a later repair plan.

TDI says an adjuster estimates repair cost and the company bases payment on that estimate. If damage turns out worse than first thought, you or the shop can discuss raising the estimate with the adjuster. That is a review process, not a promise that every added item will be paid.

2. Ask the shop to explain what changed

Request a readable supplement showing the added or changed work, the reason it was not in the earlier estimate and the supporting photos or technical explanation. Ask what has been disassembled, what remains uncertain and whether another supplement might follow. Keep the factual description separate from arguments about coverage.

Do not diagnose structural or safety issues yourself from photographs. If the vehicle may be unsafe, ask qualified repair professionals what must happen before it is driven. A payment discussion cannot establish that a damaged car is safe to use.

3. Identify who sends what to the insurer

Confirm whether the shop or you will send the supplement, to which adjuster and through what channel. Keep a copy of exactly what was submitted and the date. Ask the insurer to identify anything still required for review instead of assuming the shop’s message reached the correct file.

If you have more than one claim, label the private correspondence clearly. Do not send a supplement intended for your collision insurer only to the other driver’s liability adjuster and assume both companies have it. Each recipient may maintain a separate record and review process.

4. Distinguish review from authorization

Ask which added operations are accepted, which remain disputed and which are still awaiting inspection or documentation. Obtain the explanation in writing where possible. Separately ask the shop what work it is authorized to perform under your agreement and what charges could become your responsibility.

TDI says a company may suggest preferred shops but cannot require a shop from its list. It also says the insurer is required to pay for parts of like kind and quality, not necessarily new original-manufacturer parts. Those general statements do not decide a specific parts, labor or coverage dispute.

5. Connect delays to the rental file

Ask for an updated repair schedule and what is causing any delay: parts, inspection, supplement review or additional work. Send material schedule information to the rental decision-maker and request the exact authorized end date. A shop’s expected completion date is not itself an insurer’s approval of more rental days.

TDI explains that an insurer might extend rental time when parts or newly discovered damage cause delays. It does not promise unlimited rental reimbursement. Keep the extension response and plan for the possibility that some days or charges remain yours.

6. Close the file with the final documents

Before treating the paperwork as finished, compare the final invoice, the latest accepted estimate or supplement, the payment explanation and your own receipts. Ask about unresolved items rather than assuming a difference in totals is necessarily an error or a legal violation. Preserve explanations for any agreed changes.

If the dispute remains, ask for the specific reason and use the claim-disagreements guide to understand TDI’s described options and limits. Appraisal, a complaint and court proceedings are different paths. This guide cannot choose one for you, determine contract rights or guarantee payment for a supplement.

Before authorizing more work: reconcile three answers

Keep a short private handoff sheet with the shop’s added-work explanation, the insurer’s current response and the authorization you have actually given the shop. Put unanswered items in a separate list. Ask whether any operation must wait for another inspection, whether additional costs are still unresolved and how the shop will communicate a schedule change. Do not write “approved” simply because someone has received the estimate. When a revised response arrives, retain the earlier one and identify what changed. This keeps technical findings, payment review and your contract with the shop visible as separate decisions.