Facebook Issues

When I first signed up for Facebook you had to either be 18 to use it, or list your highschool. They didn't have homeschooled as an option, so I just said that I was 18 and hid my birth year on my info section.
Facebook finally added a homeschool option, so I requested they change my birth year to 1993. They did so, but they messed up my actual birth date in the process. I noticed that my birthday said July 7th, 1993. That is not my birthday! Thanks, Facebook. That's brilliant.
Now it's been another few weeks since I requested they set it back to July 31st and they still haven't fixed it. I found a survey in my email from the original change request; it was asking questions about how timely the service was, if they had resolved my problem, etc. I told them that they took too long, got it wrong, and they're taking too long to fix it.
This is so annoying! If I was over 18 it would let me change my birthday back to July 31st, but since it's now at least to the correct year, I can't change the day. But really, that's silly. It's not like 18 year olds have randomly changing birthdays. Weird.
I hope they fix it soon.