Dumb question. I recently submitted an article to a magazine, and it was accepted. At least, they offered the measly sum of $15 via PayPal upon publication (date unspecified). Do I 1) send them a bill? 2) monitor their online mag for publication? 3) wait around and monitor my Paypal account since I gave them my Paypal email address? What is proper etiquette in this instance?

Thanks!