What are the common issues one might face when applying for a Thai visa in Savannakhet, Laos?

I just tried to apply in Savannakhet, Laos, but ran into some issues. When I dropped off my documents, they informed me that they couldn’t review them immediately and asked me to return in two business days, with no guarantee that they would even process the application.

When I went back two days later, they returned my application because my business license wasn’t notarized. They also pointed out that the last three bank statements need to show a minimum balance of 500,000 THB, otherwise the application would be rejected.