To renew your account, just log in by going to My OA > Dashboard > Account.
Or, follow this link:
If you scroll down and under your orders you will see the Renew or Change Payment button. Click this, and the status of the course will change on your profile page. If you go ahead and complete the next steps when prompted, your subscription should become active once again.
If you are a student of Magic Box 1.0 (in The Secret Lab at ChrisOatley.com), you can get in touch via our Contact Form, or reach out to support(at)chrisoatley.com