Hi there Sally, and welcome to
planDisney!
Thanks for stopping by with your question. We're happy to help with everything related to your
Walt Disney World vacation. It looks like your spring getaway begins in just a few weeks. You must be so excited!
It sounds like you pre-registered to use
Disability Access Service during your stay. This is an excellent tool for making theme park visits more convenient and enjoyable for your entire party. Since the number of Guests utilizing this service together maxes out at 6, and your group is 7, I recommend stopping by Guest Relations upon arrival at a theme park. Explain the situation to a Cast Member there, and they will likely add the final Guest. Remember that this is entirely up to the Cast Member's discretion since the official rule is 6 Guests per access pass, but in my experience, they will do what they can to help you.
I hope everything works out for you, Sally! Because Guest Relations windows are busy, these are a few of my preferred locations that usually see lower crowds.
Best wishes for an unforgettable adventure! If there's anything else we at planDisney can do to assist you, please come see us again.
Have a magical day,
Betsy