<p>If I have something so important that I need to communicate and I’ve sent two emails that have not been responded to, I look for another method of communication. I think that is the point of this thread. OP is asking how to get in touch with a prof who isn’t answering emails. We have no idea why he is ignoring emails. It really could be as simple as the email ended up in a SPAM filter or the email was overlooked amid too many others or as complicated as he has knowingly ‘chose’ to ignore this particular student because he is some sort of heartless, unfeeling rude type of prof - who knows?</p>
<p>But the answer is found quite simply in that great Einstein quote: Insanity: doing the same thing over and over again and expecting different results.</p>
<p>So to OP I would suggest the simple answer - Do something different.
The ‘something different’ has been explained in several excellent suggestions. </p>
<p>Me personally, email is my preferred for of communication for everything. But when that fails, I do what I dislike, I pick up the phone and place a call- to someone!</p>