Bad and demeaning customer service

Bad customer service experienced at the quagga absa bank in pretoria west, we are a social society, one of our signatories is pregnant and we are due to change signatories. We have been taken pillar to post and embarrassed in front of the other customers, we were told our constitution is not proper and the branch manager even went to an extend of taking other customer's resolution to set some form of an example, in front of the other customers, we were told that our proof of residents is not proper, that a written miniutes should be on an A4 paper. What the branch manager did is clearly unaccetable, one of our signatatories lost her phone and we feel its not safe hence we have came to the branch to make changes.