Retirement policy claim

My father had a retirement policy with metropolitan. He passed away in 2021 February. We have been battling to get the policy paid out. We submitted the documents last year. We have been submitting documents and haven’t been getting proper communication regarding the policy as we have been trying to claim. Last month, We were required to send affidavits as proof that we are family with the deceased and nothing has been done. This process is taking way too long now. My mum and I are really frustrated because this money needs to cater for my siblings and I. I’m just hoping that posting on this platform will at least assist in making the process quicker and also getting clear communication on what is happening because we really don’t understand the delay.