Oh, I totally forgot to add the San Fernando valley as a possible place for an alumnae chapter! I know that DG has one there because they did a fundraiser. So, there might be a Pi Phi group there.
Please, please try this group before you contact any sorority's alumnae chapters directly. Let them know that you tried to contact the LA APH and have not had a response.
As has been stated, alumnae chapters can vary GREATLY from group to group and chapter to chapter, and the last thing you want to do is lobby a group for recs who for one reason or the other does not concern themselves with that.
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It is all 33girl's fault. ~DrPhil