My account, some weeks ago was banned due to bad posts/questions quality. Before the ban I had a reputation of 15, after the bad posts it dropped to 7, and now, after improving the posts, my reputation is 17, better than ever.
Despite this my account is still banned. The only thing I can think of is the fact that there is a post left where I got a -1, and so fixing that my account will be reinstated again.
But...is it possible that just one question affects if the account remains banned or not-the other questions seems to be Ok-no negative reputation, it is either 0(the vast majority) or 1.