If your account is banned you dont need to worry. Google is allowing ads to be placed on yours sites from different account. How i know?? First of all i wanna let you know that my adsense account has been disabled. Today i was doing some changes to my blogspot blog and curiously i clicked on monetize button, just to see what happens. And i found a new form, i had attached the screenshot. Its truely a good news for me.
Lol, Google isn't banned your site they banned your account thats y you are having adsense again on your site. But dont play with the big dady G just mail them and tell what you said here if they reply you that they allow then use adsense on that site