Use the Lost Password feature; if it states that your account still requires activation then nothing has gone wrong but you simply need to wait for someone to have time to handle account approvals. It can take a bit longer when people are busy.
If it was a simple, single application, then not really. When dealing with potentially dozens at a time, it becomes much harder. Especially when people will always try to slip something they think is funny past the Handle rules.
"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."
Nobody. Generally all pending join requests are dealt with at once. When they are not, it simply depends on the individual approving, whether they reject join requests that violate certain rules first, approve all all valid ones first, etc.