We paid drop off subcharge. To different place than office. They first told us to drop off at office. And told us to take taxi. We talked a lot, there was some calling, and then they finaly told they will drive us there. It can be confusing for non vietnamesee speaking travelers. But be persistent and nice, and everyone will try to help you :-)

Way from Ninh Bình to Ha Noi was much better than other one with a company, their name I don’t want to say. No bus change, no driver changes, a company member wrote me himself (instead me running in Hanoi streets and asking local people “can you call the driver …?”. Don’t forget to pay additional money for extra service like pick up and drop off when you want. Get ready to change bus to a car in the end point of the bus. Just take your bags and seat to a car. It’s simple. And I’m appreciate a speed of bus. I’m not sure I’d it legal or not, but 100km/h is much better than 80. Thanks for your attention and sorry for my bad English (your Russian is not better I’m sure). Good luck!