Here's a question for those of you who received an acceptance from the graduate school itself, whether it be an official form email or letter by post. Did you then contact your POI at the university or the department acknowledging this in any way? I see some people get notified by individuals they've been in contact with, but if not should you reach out to them and express anything? I was just curious. I don't know what the proper etiquette is and wouldn't want it to seem like I am disinterested. Does one wait until after the department contacts them concerning funding?