The insured submitted costs that exceeded $1,176,000 for remediation of an oil spill. VERTEX’s investigation obtained documentation that identified exact dates of service. A significant portion of the demanded costs was incurred before the claim was tendered and activities were conducted without prior consent. Another large portion was not found reasonable in the absence of supporting documentation. VERTEX’s assistance (total billed costs of ~$5,000) assisted with a potential cost savings of more than $1,000,000.00.