"Blackballed" I always thought was after pledging had started and was more to do with not getting initiated.
UofAGreek10 - you might want to get a new username as you're not a Greek yet. That being said, the only group where they can conceivably get you cut is their own. I don't know which "A" you are attending, but unless it's Alaska, the system and the chapters are HUGE. I doubt if they even know all of their own sisters, let alone enough sisters in the other sororities to get you "blacklisted."
Be as nauseatingly nice to them as you can be. I personally (this may not be your style, so don't do it if it's not) would be all "OMG, I'm afraid to rush now, I'm just going to drop out" and then see the
looks on their faces when you walk in the door during the first round.
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