I agree that all you can do is ask.

I asked my old therapist for a message like that once and he refused. He said it might make me too dependent on him. I think that was the only thing I ever really asked for. I cried and felt rejected, but I kind of see his point.

But he would leave voicemails for me. I did save those for awhile. I guess he wasn't really thinking about it being basically the same thing.

I personally don't think it is wrong to ask or wrong to want this or wrong to get it.