You just got a letter that says your claim is still "under review" even though the insurer has had your medical records, repair estimates, and witness statements for weeks or months. That is where unreasonable delay comes in. It means an insurance company is dragging its feet longer than a fair investigation or normal claim handling should take, without a valid reason. Some delay is expected while facts get checked. The problem starts when the company stalls, ignores follow-ups, keeps asking for the same paperwork, or just goes silent to wear you down.

Why it matters is simple: delay is a pressure tactic. Bills do not pause because an adjuster wants more time. Missed wages keep stacking up. Treatment decisions get harder. People settle cheap because they need money now, and insurers know that. When the delay has no good excuse, it can support a bad faith claim, especially if the carrier had enough information to make a decision but chose to sit on it.

In Delaware, delay can also mess with deadlines. The state generally gives injured people 2 years to file a personal injury lawsuit after an accident under 10 Del. C. § 8119. If an insurer strings you along and that clock runs out, the damage is real. Unreasonable delay can affect settlement, damages, and whether the insurer's conduct becomes part of the legal fight.