The office I work in keeps weird hours, so I frequently leave messages or send emails that I need to have returned to other people and businesses. I've found that people, quite often, don't listen to anything I say in the message and/or don't read the email.
So, when I *do* have a chance to speak with them, they are unprepared or cannot answer my question without instruction or information that I already provided.
For example, we got a letter from a professional psychological organization the other day that said: "We see your company has applied for International SomethingOrAnother Status."
Upon taking a look at our records, I noted that we did not, in fact, apply for the International SomethingOrAnother Status. So I called the woman that signed the letter. She wasn't in the office because it was well after five. No biggie.
In my message I give our ID number, my name, my phone number, and explain the situation slowly and carefully (I do this a lot, so I like to think I'm good at it). However, when she returns my call the next day, the first thing she says is: "And what was your call in reference to?"
So I explain the situation, once again and she says: "What's your identification number?" So I give it to her, again. Then, she puts me on hold for 15 minutes while she looks up our account.
And I find that deeply annoying. I gave you that information. You should have looked up our account BEFORE calling instead of calling ot get the information I already gave you and wasting my time by putting me on hold.