Contact us
Email is the fastest way to reach us.
- Response time
- Within 48 hours, usually much sooner. Email is monitored seven days a week.
- Xiaohongshu
- @QuantQns · Direct messages work too, but email gets a faster reply.
What to email about
- Billing and subscriptions. Include the email address used at checkout. Cancellation is self-service from your account, but we can help if something looks wrong.
- Access problems. If a subscription you paid for is not showing, email us — we can see the payment and fix it manually.
- Corrections. If a solution is wrong or unclear, tell us which question and what is off. These get fixed quickly.
- Privacy requests. Access, export, or deletion of your data.