Hi Inca!
From one PNAM to another, best of success to you!!
If there's one thing I always tell PNAMs, it's to accept now that you may have to wait long periods of time without hearing back from people. It's par for the course.
Also, don't forget that it's January and people may be taking a break from the holidays. January and February may be a bit busier for folks since the spring term will have just started and the alumnae may be helping chapters with spring recruitment etc.
I think you're wise to weigh your options at the start. If the organization does not seem responsive at all, move on. Unless you desperately want to be in the such-n-such sorority, I wouldn't try and fight against people who will make you feel bad.
I have to agree with Sistermadly regarding the multiple interest situation. It would be great if we could approach these things one at a time. However, as most of us PNAMs know, some orgs just won't respond to enquiries for months. Just when you give up and contact your next choice, the first responds! Now you've got to juggle two (or even three!) orgs at one time. CutiePie2000 advises that you try to be as discreet as possible so as to not seem like you're just going from one org to another until someone takes you. This is good advice. If asked by an alumnae, I would admit to having contacted another org so as to not be dishonest.
Ok....now, as much as I love CutiePie2000, who is absolutely brilliant

, I have to disagree with some of her advice posted in another thread. CutiePie2000 advocates not contacting local alumnae groups on your own. Instead, one should allow the national headquarters to do it for you. Again, I have to speak from experience and having read other's similar experiences, that national HQs don't always respond in a reasonable fashion. If they do, they're either really helpful or really NOT. If they are not responding or not helpful, then a PNAMs only choice is to contact an alumnae group directly. Oddly enough, one of the national officers of one org told me to do just that! Though, CP2000 is right in advsiing that you make sure that you clearly explain that you are not a member and that you are interested in alumnae initiation.
Good luck to you!
.....Kelly