# Page Not Found

The URL `vi/vietqr-refund-apis/goi-api-refund` does not exist.

You might be looking for one of these pages:
- [Gọi API Refund](https://api.vietqr.vn/vi/cac-dich-vu-api-khac/vietqr-refund-apis/goi-api-refund.md)
- [Gọi API Get Token](https://api.vietqr.vn/vi/api-vietqr-callback/goi-api-get-token.md)
- [Chú ý đối với refund](https://api.vietqr.vn/vi/cac-dich-vu-api-khac/vietqr-refund-apis/chu-y-doi-voi-refund.md)
- [Gọi API Test Callback](https://api.vietqr.vn/vi/api-vietqr-callback/goi-api-test-callback.md)
- [Gọi API Generate VietQR Code](https://api.vietqr.vn/vi/api-vietqr-callback/goi-api-generate-vietqr-code.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://api.vietqr.vn/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://api.vietqr.vn/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/vi/cac-dich-vu-api-khac/vietqr-refund-apis/goi-api-refund.md`)
- Use `Accept: text/markdown` header for content negotiation