Unprofessional service

I had made a complaint in the later weeks of December concerning my loan. A consultant made an arrangement with me but that arrangement is something that is apparently wrong..the branch manager said they are waiting for a response from the department and to date, nothing. Instead I got a call from a call center agent around 08:10 who asked me about a call I had received last week and as I was thinking about the question,went on to assume that I was called. When he realised his error, he didn't give me a chance to explain myself and hung up on me. He didn't give me time to answer and assumed whatever he was thinking and proceeded to hang up as I was trying to answer...this is lethargic work from your consultant and needs rectifying. I mentioned I had an open case and he still went on to hang up..this is unacceptable and if he didn't want to talk, shouldn't have called in the 1st place... horrible service from you and won't be requiring anything else from you.