If the ban of 10 days was doubled to 20 days and began on the day of the evasion then it is well past 20 days now.
Had a 20 day ban started on the first of this month then it would be over now but it actually started before the end of last month.
Any suggestions?
Like I mentioned before, the account was probably permabanned, meaning it will never be unbanned.
However, wait for BadBear to post in this thread (he should post in here if he sees this thread) and he should be able to tell you exactly how long the ban is.
Also important when everyone say's wait were talking like month's not day's. Ban evasion is taken very seriously, if you bug the admins on it you will never get it back.
Wait a few months admit what you did, appolgize and ask for forgiveness. And you might be banned forever still. Only admins can tell you this. No one knows how bad your spamming and ban evasion was besides them.