If you mean only your website banned but your adsense account is still active, then you will get paid However, if your adsense account was banned, then you will not receive single penny
Nope. You will not get that money. Unless you get lucky and can talk them into opening your account back up. Not likely though.
You should actually read their TOS. According to it they only keep the payments if your clicks were invalid or contain a high percentage of invalid clicks.