A lifetime warranty on every product
Every website or software product built by TJZenn comes with a lifetime warranty – free, unlimited bug fixes, as long as the source code hasn't been touched by a third party. This isn't a marketing gimmick, it's a long-term commitment we stand behind.
What's covered
Throughout the product's entire lifetime, any issue caused on our end is fixed free of charge – no limit on time, no limit on the number of requests.
Bugs in code built by TJZenn
Any technical issue originating from code written by the TJZenn team is fixed at no cost.
Discrepancies from the delivered version
Interface, content, or functionality that no longer matches what was accepted at handover.
Features not working as agreed
Functionality agreed upon in the contract that behaves incorrectly or unreliably.
Operational issues on infrastructure we set up
Support for issues related to infrastructure or deployments configured by TJZenn.
- The source code has not been modified or tampered with by any third party.
- The product is used as intended, following the handover instructions.
- The contract or service agreement has been paid in full as agreed.
Warranty duration
Lifetime
Not 6 months, not 1 year – the entire lifetime of the product, completely free.
What's not covered
Requests for new features or design changes outside the original contract scope.
Issues caused by a third party modifying the source code.
Issues from infrastructure managed by the client (external hosting, domain) such as expiry or misconfiguration.
Data loss due to user error or lack of regular backups.
Force majeure events: natural disasters, widespread power outages, or failures from third-party infrastructure providers.
Even in these cases, we're still happy to help – any cost will be quoted clearly upfront, with no surprises.
Filing a warranty claim takes just 4 steps
Report the issue
Send a description via phone, email, or Zalo, with screenshots or video if available.
Review & diagnosis
Our technical team responds within 24 business hours to identify the cause.
Fix the issue
We resolve the issue and keep you updated throughout the process.
Confirmation
You review the product and confirm the issue has been fully resolved.
A real warranty, no gimmicks
Total transparency
No hidden fees for issues that fall under our responsibility.
Fast response
Every request is reviewed and responded to within 24 business hours.
Long-term partnership
Handover isn't the end of the relationship – we stay by your side.
