I know of one case where the guy spammed Amazon's EO until they finally said "FICO it, just give this little ish his account back so he stops annoying us".
The best part? The guy inadvertently revealed the real reason he got banned was for excessive returns, and not "help Amazon banned me for no particular reason!" as he original claimed. It was comedy gold. (he copy-pasta'd the entire email Amazon sent him, and it said something to the effect of "although we have experienced an extraordinary number of returns from you, as Earth's most customer-centric company, we would like for you to enjoy your Amazon experience, and therefore we've decided to restore your account")