Appalling service

Was contacted about my late mothers unclaimed pension fund and all documents were submitted last year October and was told that it takes up to a year. A year and 2 months later im still waiting and was advised that their waiting for trustees that have a back log, and now when i sent a follow up email to the administrations department im not getting any response anymore.my last email was on the 21/11/2023 to date no one has reverted back Im appalled of the service received and wouldn't even recommend them to anyone.