Bad service at west street Standard bank Durban

I have been with standard bank as a customer for over 7 years now. Yesterday I tool half day from work to go to the bank and get a card replacement.. When I got there the queue was long and there was a shortage of staff to help me. When I enquired from the lady who is in charge of queues as to why they have short staff an we havevwaut for so long she told ne if I'm in a rush I'm to go to another branch. I'm not happy with her response and I do t understand why such a big branch has a shortage of staff.. And such an attitude from their staff.