Pension payout

Need urgent advise please

I got devorced end of 2024. I have submitted all documents to Sentinel pension fund as I must get 50% of x husbands pension fund.

They have confirmed many times that all documents was received and all is in order.

When I phoned 2/3 weeks ago to follow up, they advised that the claim is with a Supervisor. I must phone again in a few days to follow up. Today, phoned again. They checked, but cant see any movement or progress. Still with the same person.

I submitted this documents in November 2024. Its 6 months later, and feels like I dont get anywhere. Where do I go from here?

Thank you