Planning to apply single non-O visa but what is the differece between Vientiane and Savannakhet. Other mentions certified copies and The other just copies. Signed by my wife means certified
Vientiane
Documents of Thai national: a marriage certificate or a birth certificate, a passport, a Thai ID Card, and a house registration (or their certified copies)
Savannakhet
Original and a copy of marriage certificate (for spouse/parent) or birth certificate (for child).
A copy of Thai identification card (for spouse/parent)
A copy of passport (for spouse/parent)
A copy of Thai House registration