Worst Service but only take debit orders on time

Good day

I am trying to cancel my medical aid for the year 2020, and I have been on the line for the past 40min. I managed to get a reference number, and the phone operator said he needs to put me through to finance and give them the reference number ***. I have wasted 30min of my airtime and not getting through, please take note that I have cancelled my plan for MANY reasons and this is ONE of them, your lack of availability when needed but can only take debit orders on time. I need a confirmation letter via email ASAP that my medical aid has been cancelled as of 31 December 2020 or someone from your department call me back.