Aww, I'm sorry about that Meep, I had something similar happen to me when I was 18, but I had already pre-registered, so by that point I was losing money if she told me I couldn't go. I know she hates money wasting, so she let me go with some friends she met a day before hand.
Now I'm 24, so I go when I can (more like when I have extra money to waste on a con)