None assistance from branch and call centres

Good day I have been calling FNB since the 28th May 2020 to get assistance regarding a debit order reversal, it is very frustrating as I am wasting my airtime calling your contact centre without getting assistance, I even went to the Westgate branch in Cape Town and they told me that the cant assist instead they gave me a card with a contact centre number, I called the number and guess what the lady that I spoke to told me that she was having system issues and I must call back after that she dropped the phone.T o say that I am disappointed with FNB is an understatement, what kind of service is this next thing you are going to tell me that its too late where as I have been trying with no success.The debit order has now taken money from my account again and you guys are refusing to help. I am expecting someone to call me as I have wasted enough of my petrol and airtime trying to get assistance.