SA's worst bank - Standard Bank

In May this year I went to Std Bank Durban North to change my personal details as I had recently got married. When I was there the system went offline so the representative told me she would sort it out when they get back online and took copies of all the relevant details. I went to find out whats going on so I decided to use the La Lucia Mall branch instead (28/10/15). I go in and they tell me I need to do the whole process again and bring my marriage certificate. I was upset as I had already wasted time doing this previously. So today (29/10/15) I take my marriage certificate and go in and deal with the same person who now tells me I need proof of residence. This is my 3rd visit to Standard Bank and being a client of theirs is costing me money. Why did the person not tell me the previous day exactly what documents would be needed. Rest assured I will be changing my bankers as this is not the first time I have had an issue. I do not understand why proof of residence is needed my surname changed nothing else. Standard Bank is truly pathetic, no feedback at all. If anyone wants to protect their finances and best interests...stay away from this banking institution.