Update Vientiane.
It was refuse the tourist visa.
Passport from a country of Europe with mostly full of tourist visa and ed visa. ( no red stamp, no warning). Just with 2 visa from Vientaine, one in 2017, one in 2018. In 2019 just I have one tourist visa ( Savannakhet).
Yesterday when I gave them the paper, and passport, they requiered me, my bank statement from thai bank, they said me that they didnt like my bank statement from my country. I should to print it there my thai bank statement
Today, when I went to pick the passport, they told me that they cant give me the visa. With a smile I asked them, why? They said me cant give me the visa bz I have a lot of visas. (from them just 2, and long time ago, I havent any red stamp, any warning in my passport). The university girl working there, was very rude. I asked her.. If I was doing something wrong or bad? She said me No, but go out. She was very rude talking all time, I couldnt beleive that a young girl talk by this way, but still I kept my smile. Same happened a french men today, they didnt give him the visa. (I saw him at border, and he told me his history, without warnings or red stamp).
Nong khai border all perfect, no problems.
TLDR : Answer Summary
The author shares their experience of being refused a tourist visa in Vientiane, despite having a clean visa history with no warning stamps in their passport. They were required to provide a bank statement from a Thai bank, which led to complications. Upon returning for the passport, officials cited the applicant's numerous past visas as the reason for refusal. The author encounters rude treatment from a staff member and mentions similar experiences shared by another expat.