no customer service

I app**** for a smart account online and I received a small to go collect my card at the Chris Hani branch with a proof of address no longer than 3 months and my ID, when I got there one of the staff made me wait in a wrong line for about 45 minutes then when I was in the correct line I waited for about 26 minutes and the consultant told me that she won't accept my latter because it's from Discovery. My latter was one month old, the thing that makes me angry is that they never specified which latter is should bring they just said proof of address which is no longer than three months. That's really unprofessional and I waisted my time with this bank