Very very poor communication

I called discovery call center today, to change my debit date. I spoke to Laleka and she changed my debit date to the 10th, while still confirming the change the call cut off. So i called back to confirm if the debit date has been changed on the system. I then spoke Andile, she said to me, on the system the change as been made and that i will be debited on the 1/08/2024 & 10/08/2024. She than advise me that after the debit on the 1/08/2024 i need to call to change my debit date back to the 1st. I than receive a call back from Laleka after a few minutes, she called to confirm that the date set for the 10th to be debited. So Laleka i ask her will i be double debited, she says i wll not get double debited. She said that she will confirm with Andile on the duble debit, i was on hold for 9 minutes until the call got cut off again. So now i am not sure what is going on, will i get doubled debited or not. The agents does not know themselfs what is going on. Each time i call the call center I use alot of airtime. Something so simple to get done and its been made to be so complicated by the agents.