Call centre put me on hold hoping I'll go away

Called in for an account query at 11:15, had to wait 25 min for someone to answer. The person who answered put me on hold immediately after answering because he needs to pull up my details, I had to wait 10 more minutes. I asked him one question about what I should do about the invoice if the credit doesn't show next month, he said abruptly that he will have to put me through to his supervisor. He put me on hold again and at 58 min a lady answered and said I'm through to the call centre how can she help me... I explained to her that I am furious with the services I've received.

I'm absolutely fuming with the terrible service of the call centre,

I want you to find this person and give me feedback on why he coulnd't answer my question and why I had to wait an HOUR for nothing!!