144 hour visa free transit at Shanghai

Hi, I am booked on the Majestic princess for a tour of Asia boarding at Singapore and disembarking at Shanghai.

I am a UK passport holder .

The last country visited prior to China is Japan.

The ship docks in the morning at Shanghai and i am booked on a Qatar flight to Doha at 23.50 the same day.

I believe I qualify for the 144 hour visa free transit as the ship docks at the Wusongkou cruise terminal and the flight out is from Shanghai Pudong Airport.

I have been advised to the let my carrier know of this so this information can be forwarded to the chinese authorities to ensure smooth transit at Shanghai.

QUESTION- is this correct and who/how do i do this

any help greatly appreciated

Check this thread out - good information:

https://boards.cruisecritic.com/showthread.php?t=2582518