No service, no customer interest or priority

To be honest, I am so dissatisfied and disappointed with this bank that I can not even explain, i made by accident a wrong payment last year, phoned fnb immediately and was told i have to fill in a form etc but they can not guarantee to get the funds back eventhough it was paid into another fnb account and refused to do the reversal when I phoned and gave them all the details. Non the less the service you get from them when asking for assistance in this is unbelievable after all you expect to build a relationship with them but can't trust them to take their clients interest as a priority especially when you talk about a lot of money (100k) to be exact