FNB treated me unfairly and couldn't be bothered!

I am disgusted by the lack of service I received from this bank. On Friday afternoon I called FNB to enquire about an online purchase I made. While on the call with Nombulelo, I also enquired about reducing my overdraft amount and she said she can do it immediately. I asked her to reduce my overdraft with R1200, the next thing she told me that she had made a mistake and that it was happening to her for the second time. She confirmed that she reduced all my overdraft and that this means I don't have money in my account but that will be rectified on the same day. Nombulelo confirmed that I will receive a call on the same day(Friday 22/01/2021) and that this will be rectified on the same day or latest Saturday morning. This was not done, when I followed up yesterday at 10am,I was told by different agents that this can only be done Monday - Friday and that it takes 3-5 days. You can imagine my shock because this is definitely not what Nombulelo told me. I also liaised with your twitter person who said he escalated my query and that also was not not fruitful because today is Sunday and my money is still not in my account. I was supposed to do so much this weekend because I work during the week, I had errands to run, I had to buy food but I cannot do any of those things because I don't have money. One agent told me that this will only be done on Tuesday. I am so disappointed, I cannot wait for all of this to be sorted so I can leave this useless bank. This is not the way to treat a client and I know you have billions of those but you cannot treat me this way. The same way it was so easy to take me money, it should also be easy to pay it back. My biggest concern is also how your twitter person suggested I take a temporary loan like hellooooo!!! Who is going to pay for that interest? My credit record? Do you know how frustrating it is fighting for your own money? I have debit orders due to go off on 25/01/2021 so please kindly explain to me how you are going to fix that ans insure that I don't have any extra charges or that my credit record is not affected when I default tomorrow. I want my money, all of it and I don't even want that stupid overdraft to be reduced anymore.I want alll of my money back!