I m just coming to Dak Lak province (eighth time already) to visit my girlfriend for 4 weeks. I got traveling visum (type AR), valued to 2020. Until now, I always stayed at home of her family and I applied for this in municipal police station. Never had problem. Today, police officer told me, until we not married, I could not stay in her house, but must stay in hotel. He would control and if not do, get be punished.
My question now: is this legal? Someone have advice, what I could do? Thanks in advance for every advice.