Refund, Exchange and Warranty Policy

1. Scope

This policy covers every course, lesson package and paid service purchased directly on eCenter. Purchases made through a third party follow that partner's policy.

2. Refund conditions

You get a full refund if you request it within 7 days of payment and have consumed no more than 20% of the course content (or no more than 2 of your 1-on-1 lessons). After that, the unused portion of a lesson package is refunded pro rata, less the lessons already delivered.

3. Refunds with no time limit

We refund in full when: you were charged twice or for the wrong amount; the service was not activated due to a fault on our side; the content differs fundamentally from its description; or eCenter cancels a class and cannot offer a replacement slot.

4. How to request

Email levanhaichau@gmail.com or call 0908362485 with your order code, account email and reason. We respond within 48 business hours and complete the refund within 7–14 business days, back to the original payment method.

5. Exchanges

Instead of a refund you may switch to another course of equal or higher value (paying the difference) within 30 days of purchase, or change teacher free of charge if the match is not right.

6. Quality warranty

For the full course term, eCenter guarantees stable access to the content and free technical support. Any lesson interrupted by a fault on our side is made up free of charge. 30-day progress commitment: if you complete the agreed learning path without reaching the agreed goal, you receive free additional tutoring.