Slow payment of Deceased's Life Policy

After paying premiums for more than 35 years on a Life policy for my Late Partner and having received all documentation required from the Estate's executor, the payment is not forth coming. I have received a quote for short term insurance, but now have my doubts. My telephonic conversation with Momentum today, confirmed that all documentation required, were received last month. They want me to contact them again tomorrow. When the policy was taken out, the Agent had another story! I hate double standards.