How is the appointment system at the Vientiane Consular for visa collection, and what happens if you miss the pickup date?

At the Vientiane Consular, the appointment system for visas seems ambiguous, as experiences vary; some report that during passport pickup, individuals are generally called in numerical order, but there are no strict controls on application submission times. It's noted that entry might be more first come first serve on application days. If a person cannot pick up their passport on the designated date, they may risk having their visa canceled, requiring them to restart the application process.