Terrible service

I usually get terrific service from the icb group, but today when I asked a question regarding my tracking number which wasn't picking up on the post office system and regarding documents concerning my poe, which I explained to Kevin (the operator whom assisted me) I did not have on hand, I received nothing but rudeness and bad attitude. He spoke down to me as if I was stupid and constantly sighed whenever I asked a question. He had to ask someone else to answer a simple question which he should have known the answer to. He then continued to tell me I must print it off, when I asked what I must print off he agitatedly sighed and said from the computer. This did not answer my question. After my 5 minutes on hold and his constant bad attitude and superiority I lost my temper and he threatened to hang up which I insisted he can proceed to do. When I asked to speak to a manager he refused it. I then said I will lodge a complaint and hung up.