Hi Anh Truong,
First of all, Northern Charm Hotel would like to thank you for choosing the service of the hotel.
And I'm very sorry for the experience at the hotel, the hotel has also checked that Wifi on the breakfast floor, Wifi on the 16th floor of the hotel did not set a password, maybe when you come to the breakfast area on the phone. I have not accessed the 16th floor area and still keep the wifi downstairs, so it's weak.
And about the fact that the restaurant staff checked the room number twice, it was due to a mistake that the previous guest reported the room number to be the same as your room number, so the staff rechecked it again and I heard that you also explained. Please give it to me at the time you ask me again, hope you understand and sympathize, my side always welcomes guests with respect.
Once again, we ask for your understanding and look forward to the opportunity to welcome you back
Best regards
Northern Charm hotel