Re-affiliate after Losing membership in a Sorority?

[MooseGirl]

I think phi sig allows reaffiliation since one girl was going to do that a couple of years ago...she disaffiliated for whatever reason...time or money...and thought she'd like to come back a year later. we talked to some ppl and they said she'd have to write to national, as well the archon of the chapter and other references if possible should send letters.
so if they have the process down it must be possible.