A report can help document an event, but it is not the only possible evidence and does not itself establish liability. Its usefulness depends on its contents and relationship to other evidence.
At a business, request documentation and a copy or reference number. If a copy is unavailable, note who prepared it, date, time, and location. For traffic accidents, retain police-report information and driver and vehicle details.
Identify possible errors and preserve related communications. If no report exists, do not invent one or assume that alone prevents a consultation. Photographs, witnesses, medical care, and other records may also matter.
The answer for your situation depends on the facts and records. An inquiry does not suspend legal deadlines or guarantee that the office will accept the case.