I forgot my birthday I signed up with and I can't get on!

[Tootsie`]

I signed up on neopets about two years ago and when I signed up I just put in a random number for my birthday like I usually do on these sites. I left neopets for gaia and stayed on gaia for a while. Now I want to go back on neopets and I remember my username and password, but I don't remember my bithrday! How am I supposed to get on to my account?

I was signed up with the over 18 account.  

[Tootsie`]

I really need help..  

[Guitar_God_Les_Paul]

you dont need it to log in just dont put it in