For account, sign-in, billing or site problems
Use the Contact page. Fill in your name, the email address on your account, and a message (at least 10 characters). Your message goes to the team's inbox.
The site does not publish a response time. Please help us help you by including:
- What you were trying to do, and what happened instead
- The exact message you saw
- Your browser and device, such as Chrome on a laptop or Safari on an iPhone
- For billing, the date and amount of the charge
Never put your password or full card number in a message.
For questions about the course material
- Instructors: Tutoring (with a subscription). You can attach screenshots there.
- Other students: Forums, which are free.
- Study help: the Knowledge Base.
Self-service
- Password, name, email and notifications: Account Settings
- Card, invoices and cancelling: Manage Billing in Account Settings