Ongoing since 2004

My father was IOD in the year 2004. There has been an ongoing claim since then. Where all the relevant information and documents were submitted. In the year of 2022 he has passed away from an unrelated cause. I have since taken over the queries at the CF Office. I have since received a new claim number and resubmitted reports. payslips, marriage certificates, death certificates etc. The money is owing to my mother, and even up to now I have not received any feedback yet.