Timely reporting of claims can prevent E&O claims. Insurers may deny coverage when claims are filed late, such as when a claim exceeds primary limits and involves an excess or umbrella carrier. In one situation, the agent was found liable for a large sum of money when an excess carrier denied a claim because it had not been reported until years after the accident took place. The agent was unaware that the claim had exceeded the primary policy and had not advised the excess carrier until it was too late for them to participate in the defense.