Seems like every year there is a snafu in the phone voting. I wish they would leave the lines open for longer than 30 min. after the show ends. Don't know what the answer is. I think I was shorted one vote, so I can sympathize with you.
I get caught up in the dancing aspect of the show and forget that it's a popularity contest as well--when a favorite gets voted off or when a really good dancer has to leave, I am shocked/mad.