Bonitas refusing to refund premium

Bonitas is refusing to refund a Premium. I had been paying my late mother's medical aid premium for over 24 years. The last Bonitas premium I paid for my mother was the August premium, which I paid on the morning of 31 July 2024 but she passed away at 11 o'clock at night on the evening of 31 July 2024. As medical aid premiums are paid in advance, it stood to reason she would not be making use of her medical aid in August. After she passed, I requested a refund which Bonitas agreed to do, but in order to do so, they required a litany of documents which the Executors (Attorneys) of my late mother's estate duly sent them. These document requests went on for months, always adding extra documents required as time went on. Finally, after not having more plausible requests for further documents or able to make any more valid excuses not to refund me, they have now resorted to ignoring my mails and refusing to speak to me. No one is prepared to tell me when I will be refunded. In contrast, at the time of my mother's passing, I requested a refund from her Gap cover which I received immediately with minimal documents requested. Bonitas is clearly stalling in the hopes that I will tire and let this matter go, but as a matter of principle I will not until I get was is rightfully owed to me. I have already filed a complaint with the SA Consumer Commission. Bonitas has no right to treat people in this manner. My mother was a loyal and long-standing member of Bonitas Medical Fund and this issue has thrown a very dim light on Bonitas' integrity and customer service. Shame on you Bonitas! Do the right thing and refund the premium.