What if Laos leaves the country without a departure date?

If you leave Laos without a departure date, you can try the following steps to solve the problem:

1. If you are still in Laos: go to the local immigration office or border management office, explain the situation to them, and provide your relevant documents and registration information so that they can help you supplement the departure date.

2. If you have left Laos: contact the local embassy or consulate, explain the situation to them and submit relevant documents and application materials so that they can contact the Lao Immigration Bureau or the border management office to help you solve the problem.

In any case, it is the best way to solve this kind of problem by contacting relevant local departments or institutions in time for help.