It's been a bit messy booking other members in with you if booking into another AAC lodge. The other members had to first log into that club's booking system so that they would be recognised and offered AAC rates.
That has been made easier with a recent update to the booking system. Now when you are saying who is in which bed, you can nominate which club they come from. The surname matching (just start typing surname to see suggestions) will then look at that club's database for suggested names. If you select someone from those suggestions then the correct tafiff should be applied.
This also helps if you including a member of another AAC club in your booking at AACFC.