Support
Need help with Lumen? Here's how to reach us and a few quick answers.
Email us anytime
[email protected]Billing & subscriptions
Manage or cancel your plan any time from Settings → Subscription. Charged in error, or a payment didn't go through? Email us with your account email and we'll sort it out.
Live tutor sessions
If a session won't connect, check your microphone permission (Settings app → Lumen → Microphone) and your internet connection. Text practice always works even if voice is having trouble.
Account & privacy
You can update your profile, native/target language, and tutor preferences in Settings. To delete your account and data, use Settings → Delete Account, or email us to request it.
Something else
Bug, feature idea, or anything not covered above — we read every message and reply personally.