Is it possible for any reason that your wallet gets blocked? 
There is no feature in the protocol that allows the consensus to "blacklist" or "block" a wallet. Well, you can get blacklisted technically, if your coins are coming form a wallet known to contain stolen coins. They could get confiscated when they arrive at a reputable exchange (they would be facilitating money laundering if they allow those coins to trade there). But unless this occurs, which is essentially an account restriction, you can't get your wallet 'locked' by a third party. You can lock access to your wallet, but the address would still be able to receive transactions. Just not make them.
Realistically though, there is no way that this is the case with OP. He is too much of a noob to get blacklisted by an exchange for trying to launder stolen coins. hahaha
With that said, this is good news. I don't know what exactly the issue is, but at least your wallet isn't actually blocked.
