The short answer
This charge is for Wondrium (formerly known as The Great Courses Plus), a streaming video platform offering educational documentaries, lectures, and instructional series.
Why am I being charged for Wondrium?
A credit card billing statement entry reading WONDRIUM * SUBSCRIPTION represents an authorized payment made to The Teaching Company for Wondrium, an online streaming platform specializing in educational documentaries, university level lectures, and instructional series formerly known as The Great Courses Plus. When users sign up for monthly, quarterly, or annual streaming plans, recurring membership fees process directly under this merchant descriptor.
Most unexpected charges related to this educational video service happen automatically when promotional free trial periods expire, transitioning the user account to standard paid monthly or annual subscription rates. In addition, subscription renewals continue billing your credit card each billing cycle unless explicitly deactivated beforehand through your online account settings or third party app store management portal.
To verify your account status or cancel upcoming renewals, log into your user profile on the official streaming website or review your mobile app store subscriptions. If you notice unexpected charges or need assistance with billing adjustments, contact customer support directly or notify your financial institution promptly for formal assistance.
Is Wondrium the same as The Great Courses?
The Great Courses Plus rebranded to Wondrium in 2021. The parent company is The Teaching Company, which is why older descriptors may look different.
Will they refund a forgotten trial?
Wondrium's official policy states that subscriptions are non-refundable, but their customer service is known to occasionally issue pro-rated refunds if you contact them immediately after an accidental renewal.
How to cancel a Wondrium subscription
If you signed up through a third party like Roku, Apple, or Amazon Prime Video Channels, you must cancel through that specific platform's subscription manager.
If you subscribed directly via Wondrium.com, you can cancel your membership instantly from your web dashboard to prevent any future billing.
- Identify Biller Check if the descriptor says 'ROKU FOR WONDRIUM' or 'AMAZON WONDRIUM'. If so, cancel via Roku/Amazon.
- Log In to Wondrium If billed directly, go to Wondrium.com and sign in.
- Cancel Account review to 'My Account' -> 'Manage Subscription' -> 'Cancel Subscription'.
Independent reference — not affiliated with Wondrium. Billing names and policies change; verify with the merchant or your bank before acting.
Verified sources
Every claim on this page is checked against official sources — open them to confirm before you call your bank.
- Wondrium FAQ https://www.wondrium.com
- How to Cancel Wondrium https://support.wondrium.com
Reviewed Aug 31, 2026 · high · About UnknownCharges