May I inquire why I got banned?

Aside from discussing a lets play with another person I don't see how I got banned. If it was for trying to destroy a block in a protected region, I was mining underground yesterday and I dug in the proximity of the spawn (unbeknownst to myself) and I tried three to four times to destroy a stone block, thinking it was lag. However, I was notified by a moderator (S44) that we were under spawn. We then mined away from the spawn and that was it. Afterwards, when I got back to my house I started making chests to put my items in that I didn't have room for (Dirt, Gravel, Sand, Cobblestone) and as always with Lockette, I put [PRIVATE] on my chest so no one can access it. Shortly afterwards I got banned.

So if I may be informed of how I got banned I will be pleased. This server is one of the only ones I am able to play on because of unbearable lag on others. Thanks for your time and patience in reading this post.

Unbanned.

I wonder who band players like this...or mabye autoban has a serious problem