There is no such thing as being 100% anonymous on USA eBay anymore.
Read around the managed payments section of the forum to see what your options are for running multiple accounts. Forget the idea of trying to be anonymous though. They're asking for your SSN exactly so you can't be anonymous.
Throw that account in the trash and forget about any Money in that account..YOU WONT BE GETTIN IT!!! Start Over & Learn from your mistakes.. how much did this lesson cost???