Dear Mr. Hoang Van Chieu,
First of all, the hotel would like to apologize to your family for this unavoidable incident, because the hot water heater suddenly broke down and we could only buy a new one so we could not handle it immediately. We hope your family will understand this incident.
Second, the hotel room price does NOT increase during the holidays like other hotels. If you have booked with us, you can check and compare, the room you booked is a Family room - a room for 4 people!
Sincerely and I wish your family a lucky start to the week!