Is it permissible to demand the full legal blood money, given that the insurance company pays compensation for death and states that this forfeits the right to demand blood money?

The original principle regarding your brother's blood money is that the killer's 'aqilah (male relatives) should bear it. It is permissible for you to take it if a company or insurance bears it. The payment of part of the blood money does not waive your right to claim the remainder except with your consent. What the insurance company employee said about the blood money being forfeited by compensating a portion of it is incorrect.