Old Mutual won't pay me

My father in law passed away on 15 July 2023 and I sent my claim on 18 July 2023 yet Old Mutual cannot even record the dates of the events correctly, their letter indicates that the claim was submitted in "April" and this is false information. If they cannot get the claim date correct how much misinterpreted information have they given me?

Secondly the letter states that their unable to pay the claim as my premiums "stopped" however my premiums are still ongoing to date. Old mutual has collected premium in June and still continues to collect premiums for a policy that has supposedly "lapsed" having which such information was never communicated to me in writing, by sms or even telephonically to say that my policy has lapsed. As result the continued collection of the premiums gave me the impression that my policy was still very much active and valid. Now we are at claim stage and I my claim is being rejected without any valid reasons but they continue taking my money, I am appalled by Old Mutual really. Please respond with facts as I have bank states and proof that premiums are being collected for a " Lapsed" policy.