Signing Rights on my account

First I go to ABSA last week to give my brother signing rights to my brother for when I work overseas and was given 2 Affidavid to Confirm Address forms that my wife can sign and bring in. So I done this and went back to ABSA with the forms signed by my wife and when I got there with my brother was told that she has to sign in their presence so got given more forms. Yesterday went with just my wife to the bank to sign in front of them and they said I should come back with my brother as well. Today I went to the bank with my wife and brother and was then told that the two forms would not be acceptable as I need another form of proof of residential address. I showed the consultant my other accounts that are emailed to me on my phone and she said its unacceptable as they just show my first name and surname, not my full name as is on my ID card. I have cancelled most my accounts because I will be flying on the 10th of February so will have no other statements coming to me that I can get them to change my names to my full names. Is there anyone in ABSA who can help me or do I need to close all my ABSA accounts?