go bank your head

Just now I called up Standard Chartered customer service hotline to enquire something about my account and I was pretty disappointed.

First time round, the recorded busy busy thanks for waiting for a few minutes still no one answered the phone.

Second try, a male representative picked up my call. His voice was like super soft, so I asked him to speak louder. His tone turned bad, then I caught the questions for my name and IC number, then after that couldn't hear what he was saying at all. I wonder if even ants can hear him.

Then you know what? He hung up on me.
Fine, but he didn't call me back. Hello, you had my name and IC number, you could have checked my record and just called me back right?

Yeah, probably he checked my record and saw that my account only has peanuts inside.