The problem here is that she didn't ask for a message to be left, so it's quite possible it won't be left. If you are really asking for you needs to be met, you have to be up-front and clear about it rather than having wishful thinking that maybe the t will do what you want even though you didn't directly ask for it. It just leaves a person open to disappointment this way, IMO. I guess what I'm saying is it may not be "wrong" to do what she did, but it may be a very ineffective way to get needs met.