@poppster Yes Crowd is public forum and not a direct support point for Optus. As per the text on the Yes Crowd Home Page and on the side of this page Yes Crowd cannot access or view customers account/orders.
You will have to contact Optus Directly.
Please message Optus Support 24/7 from the My Optus app. If you do not have access to the My Optus app you can use social media to contact Optus Support, please send a PM to Optus on Facebook or a DM on Twitter and include in the message you do not have access to the My Optus app.