Good morning Edwina,
Thanks very much for getting in touch. May I suggest in regards to the cruise upgrade that you make a call into our sales centre as soon as possible as they will be able to help you without delay, where as I have no information to hand regarding this upgrade.
In respect on the Yangtze cruise add on there are 20 fellow travellers taking the cruise add on.
If I can be of any further help, please do not hesitate to ask,
Kindest,
Ben