<p>I've sent my common app online (with credit card payment) about ten days ago but still haven't received a confirmation e-mail.
Do they actually send a conf. email, or do I have to wait for the "snail" mail?</p>
<p>You will eventually get a confirmation email. I applied E.D. and didn't get a confirmation email until three weeks after I sent in the pre-application form through the common application site. So, I wouldn't worry quite yet...</p>