I know how you feel. My comm appears to be back now, for the time being at any rate - is yours okay now too? If not you may need to contact them again - link's here. I had to send them another message before they restored the comm with a lame excuse about their earlier attempt to fix it not being complete or something:
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Date: 2013-05-04 04:35 pm (UTC)http://www.livejournal.com/support/faq/106.html