Hello Nicola and thanks for bringing your valued question to the Disney Parks Moms Panel and as the current British Mum here on the Panel it's my pleasure to assist you.
For me a big part of the fun of planning towards my own families jolly holidays to the magic of Walt Disney World Resort is adding our Disney Resort reservation details and the UK exclusive
Ultimate Tickets to
My Disney Experience which enables the making of those all important
FastPass+ selections and of course ensuring everyone in my party is linked via
Friends & Family.
My top tip at this point is to try not to worry too much as I'm sure with a little pixie dusted perseverance it'll all be okay in the end and to begin I thought you may find this
step-by-step FastPass+ instruction link to be super helpful in enabling to successfully add the 2 errant members of your party to My Disney Experience.
However if you're still unable to link them I suggest speaking with a knowledgable Cast Member in
Technical Support by dialling the UK
freephone number contained within this handy
Walt Disney World Resort Phone Directory who will be glad to access your My Disney Experience account and any offer further pertinent advice.
Have a great Disney day!
~ Jane