Standard bank life and asset management service is very poor

I had 4 heart attacks in March 2018, due to my deteriorating health I was let go from my place of work. I was boarded by my medical doctor in August 2018, I did submit my disability claim in April 2018, since then I still had to pay my monthly debit order, while being unemployed as I lost my job at the end of April 2018 due to my poor health. It is now a year later and I am still being requested to send documents etc. that I have send through a 100 times. This is unacceptable. They keep requesting more time, for what reason I do not know.