Life policy claim

I've experienced the most appalling service processes with life policy claims department. 3 years ago my Dad passed on with heart failure. A month later I discovered he had policy with Old mutual so I won't to the closest branch (Menlyn) The consultant helped me beautifully requesting certain documents to process the claim n fortunately I had them all, she then processed then n said all is well ill have the money in my account within 21days.Later in the day I received an email saying they are additional documents that I needed to submit (Hospitals records an tests during certain years a specific hospital)

At first I thought why cause they had they own medical doctor (process) an declaration letter of illnesses and treatments done that checks if u qualify to be covered. Then thought it's because my heart had died of something he was never diagnosed nor treated with. So I went to the specific hospital to start the process of getting the requested documents costing me R2200 where I eventually got them. I then went back to Old mutual Centurion to restart the process with full documentation including full medical records tests and all. The consultant told that because it's been long ill most probably get it in 2weeks. After 2weeks I went an called claims department to find out Whts happening then the consultant told me it's handed to the next department n I'll be getting feedback within 24hrs. Today I get a email not even a call saying they now need more documents dating further then the previous requested date including treating oncologist diagnosis treatment and results Coz my Dad was once diagnosed n treated for Prostate cancer in 2014.Is this really wht old mutual does when they need to payout life policies, wht it was a small child claiming they parents policy where they had no income. As a parent we do this to secure our kids should we dead only to be mislead. I'm beyond disappointed in Old mutual.I wouldn't ever recommend anyone to open a policy with them I'm even considering of closing all my personal accounts (funeral policy)