No customer service

My ex husband passed away on the 01st of February 2021. When we were going through his documents we cane across a policy with Direct Independent Brokers that was taken out on 3/1/2016. My daughter contacted them to inquire if this policy was still valid. But no one can give her a direct answer. And no one has called her back since last week when the inquiry was done.They do not have an email address listed or website. The telephone number on the policy is ***