The ID you need to enter is not the username or your transaction ID. Commonly, some of our users have tried to enter this value. On our site sourcecoast.com, please go to My Account > My Profile. The correct subscriber ID will be on the righthand side of the page. If this value matches what you've entered, please send me a private message with the value so I can check our database. You can see the PM enveloper icon underneath my username on the left of this post.
-Melissa