@John *********
But in some countries, you can have two passports for this reason: one is waiting for a visa while you still need to travel. And on the website of the embassy in Cambodia, they don’t mention this, so I don’t understand.
I don’t see why it would be a problem for you to be in Vietnam or Laos instead of Cambodia. Of course, there might be an interview, but if you can come back within three hours…