door closed, no sign, no response

On this day, I went to Phillipi shoppinhg center branch on a raining day. I wanted to deposit money, but the glass doors were closed, the staff members were inside, sitting behind a door. We knocked and knocked and waited for 10minutes. There was a sign saying closed during the day?. No explanation, obviously we were upset.<br> I went to another branch in Phillipi plaza to deposit. It was a an inconvenience for us as the bank's clients. I want to know, why were we treated like that.