Yes, it took 3 months (common in Laos), but finally I got all the legal papers and the numberplate for my car. I just want to point out that it would not have been possible with the help of J&C Laos. These guys are awesome and did a real good job.
My car belonged to a teacher who had a so called No Tax number, which is usually given to NGS and teachers. But since I am neither this or that, I needed a Foreigner number. That was only possible, if the university where the teacher worked before signed a paper - what was the first problem.
At the end J&C solved all problems and I got what i want for a good price as well. Great Job Stefan, Cameron an staff!!