Sin Up To Msn Msn Error Code 80048831?

Msn Error Code 80048831? - sin up to msn

I tried to log into my msn but appears error code 80048831 repeatedly. I have reset my password, but my secret answer is obviously wrong. And because I sin after 3 of the last twelve months, I have no idea what my postcode. So I can not solve it, and I really, really need access to this e-mail. Can someone help me please?