Privacy policy

Effective from 01/10/2026

1. Information we collect

Name, email and phone number when you sign up and buy a course; learning progress to suggest the next lesson. Nấc Thang does not store card numbers.

2. How we use it

To open courses, send invoices, remind you of classes and answer support requests. Promotions are sent only with your consent and you can unsubscribe any time.

3. Sharing with third parties

Only with payment and email providers, as far as needed to complete a transaction. We never sell your information to anyone.

4. Your rights

View, correct or ask us to delete your personal data by emailing hotro@nacthang.vn. Requests are handled within 7 working days.