I am 18 years old, so I figured not would be a good time to establish some credit history. I have applied to various online sites for student, bad, and no credit applications, but none of them have even been processed because the site says that my information is invalid, though I am 1,000% sure that it COMPLETELY and TOTALLY is!!! What are they looking for?! Help!

Sounds very strange, but may be you're typing in the wrong SSN number?

It may help if you order your credit report...