This is one of the most confusing issues with viewing points when there are different use years, different member numbers and different methods of purchase.
FOR EXAMPLE
My wife and I have a membership with my youngest son and his wife at OKW and AKV (September use year) and another membership just the wife and me at BWV (August use year). I can see both of these with a single log in (Both purchased through Disney) I purchased OKW (October use year) directly from my son (not through a broker) and that is a third membership number and I must use a different log in to make transactions for that account. So, as usual, there is no explaining how or why
DVC does things with members.