Not an expert but from the research I’ve done, I learned that the parent would need to complete the visa first and once it’s approved, apply for your dependents’ visa using information that connects them to yours. I hope that makes sense and helos
The ask:thailand community, consisting of multiple Q/A groups with over 100,000 members, powers this platform. It is not an official government resource. Our members actively contribute to this resource, and while we strive for accuracy, we cannot guarantee its complete reliability. Assistance to travelers is provided as a community service.