Bad service Assupol

I have 4 funeral policies with Assupol. On 13 February 2020 I called Assupol to change banking details. I spoke to Tshiamo told him that I no longer use the banking details on record and that I want to change banking details. He informed me that it takes a month 31 days for Assupol to merely change banking details. Which didn't make sense at all. He then said that he will send me their banking details and reference numbers for me to make cash payments which he did. But he did not cancel the current mode of payment on their system after I informed him that I no longer use the current banking details on the system and that they won't get any money from that account should they debit from it. Which they did on the 27th. I received notifications from the bank of unpaid debit orders and banking charges. I sent a complaint to assupol on 28 February 2020. Only to receive an sms yesterday 25 March 2020 that my complaint has been resolved without informing what the verdict is. How can my complaint be resolved without me knowing what the outcome of the complaint is. My main fear should something happen to me will my family even get the money. If they deliver such poor service at this stage, what will happen when there's a claim. I fear for senior citizens that take out policies with Assupol for their loved ones how are they treated. I'm really disappointed at those celebrities that agree to be thier embsodors the likes of Anele Mdoda, Menzi Ngubeni and Rebecca Malope. How do they agree to work with such a company and say things like they deliver when they deliver such bad services.