Agent asked me to hold so that she can go home

I called the call centre at this number *** around 20H57 to ask about my 32 days investment balance. A lady answered the phone & I didn't get the name. I explained to her the reason for my call. She made me hold without explaining to me why I'm holding. The next thing while I was holding I got a message saying the call centre opens from the morning till 21H00. Which is unprofessional. I'm using my own airtime,I want to check my balance. you've been turned for a fool because she knew it was time for her to go home. After this incident,I'm thinking twice about continue banking with standard bank. Poor service indeed.