[ Cell Phones & Plans ] Open Question : How long does optus take to activate my sim card with ported number from 3g?

Hi guys i recently just signed up with optus about an hour ago and i used my 3g phone number to register with optus for my new phone's simcard and the website said that it will take at least 30 minutes but its still not activated!!!! why is it taking soo long, is this normal or do i have to ring them or something? Help will be gladly appreciated, thanks