Really happy for you. I know the feeling when you be stuck there and you try to found anu solution to come back to Thailand lol
Before NK was such nice and now they treat us like criminal. Really crazy
Don't worry my wife call the NK border after i get deny entry and they say the same i should fly to bangkok for new entry and after 2 days there i got an new entry without ask anything , no paper , no money ; no accomodation
If you get denial just back to laos side and go to the office at the departure side and said I need canceled my stamp they know and they do it very fast