Standard Bank is negligent and unprofessional

I am so upset with the treatment I have received from Standard Bank. I have been a loyal customer for about 20 years (my very first account for my tooth fairy money was a standard bank account) and the rudeness from the customer service representative and some managers has been absolutely appalling. Never mind my problem has not been fixed. Standard Bank cancelled an extremely important transaction with an Australian company that will give me a s****s assessment. The company tried to debit my account for the fees for this s****s assessment (which I need for my Australian working visa). I am very grateful that Standard Bank alerted me to the fact that the transaction might be **********, however; once I confirmed that the transaction was legitimate, the transaction should have gone through. They cancelled it instead and now can’t reverse the process. Standard Bank should have put the payment on hold and then let it go through once I authorised it. They phoned me and said I must “just try again”, however; getting a hold of the company has been extremely difficult as they are 9 hours ahead of us (which means that when I found out about the problem, it was after working hours their side). They also take about 5-7 working days to respond to emails (which is understandable as they must get 1000s per day). I also don’t have international roaming so I can’t phone them and even if I could, the phone call would be very expensive. This error will push back the s****s assessment by a week or more. I have a job offer in Australia which depends on this s****s assessment happening in a certain time frame (now this will not happen). I have resigned from my current job and now I might actually be unemployed because of Standard Bank’s mistake. AND they don’t seem to care…. I have been passed around from manager to manager and been put on hold countless times. I was also told by a very rude manager (I do have his name) to just “stay up till the middle of the night and phone Australia when it is their work hours”…My question is WHY SHOULD THIS BECOME MY PROBLEM? The manager even admitted that there is a “gap in the system” and that Standard Bank is “reviewing the process for the future”, but this doesn’t help me now. No one has been able to assist me or offer me a solution. I was even told that I would get a phone call “FIRST THING THIS MORNING” to help me and it hasn’t happened. He also questioned my motives when I suggested that I be compensated for my time, emotional distress (since this could lead to me being unemployed and unable to pay for food or shelter) and the amount of the Australian phone call. This is unacceptable!!!!! I am at my wits end.