Talk:Vietnam/@comment-202.151.173.245-20161225013416

This article is excellent and timely. We bought a Mobitel SIM card at the Hanoi airport in late December 2016 after showing our passports. No mention of the need to re-register of course. 4 days later the cards mysteriously went dead with no warning. By this time we were in Ho Chi Minh City and we were lucky to have a Mobitel shop near our hotel. We had to go through another registration process that verrified our passports and visas. The staff at the shop was only moderately-aware of how everything worked and there was a huge number of people there so the process took a frustrating 90-minutes to complete. Fortunately we didn't loose our credits and once the cards were re-activated they worked for the rest of the trip.