in the thai embassy Vientiane I meant to aply for a multiple entry tourist visa, but forgot and filled in the form normally, so I got a single entry.

SO if I go for a day trip to nong khai then back to vientiane,will I have to use up my single entry visa?

And will I need to buy a new $35 laos visa at the border?

And will I be able to obtain a multiple entry tourist visa at the thai embassy free of charge?

Also, anyone know what happens with the fees after 4 June?

It is not a multiple entry tourist visa. It is a 2 entry visa and you have to mark it as 2 entry at the top of the form.

If you leave the coutnry you will loose your entry. You should keep your current entry along with the 30 day extension you can get at immigration. Then go to and get another visa.

After the 4th of June it will be 1000 baht per entry.