APPALLING SERVICE FROM BONITAS MEDICAL FUND

My father passed away on the 25th of July 2022. My mum and dad belonged to Bonitas Medical Fund, my Dad was the main member. I contacted Bonitas, last week and informed them of the passing of my Dad. They debited my Dad's account at the beginning of August 2022. I then received an sms last week, stating that my mum's medical cover has been cancelled since July 2022, however the account was debited for the August premium. I then contacted Bonitas requesting for a letter, stating that my mum was now excluded from the policy, they refused to give me anything in writing as I am not the executor of my Dad's estate. My mum is 74 years old with many chronic conditions, I requested the letter from Bonitas so that I could move my mum onto my medical aid however, they have refused. I have no idea what an executorship letter has to do with issuing a letter of cancellation when the cancellation was done on Bonitas side without consultation with my mum. This is pathetic service especially because my mum is an elderly person who desperately requires medical cover. I am disgusted that Bonitas can behave in this manner, you are dealing with peoples lives????