While offline someone griefed my house and took 2 Diamond blocks, I didnt see who it was, but i have proof of the blocks.

Please click the below link and read the section 'Griefing'

Will tell you how to make an ingame petition so we can come and help you.

http://www.minetown.net/forum/m/672632/viewthread/1518146-need-mod-or-admin-help

If a mod helps you they cannot refund you. So just read the refund section if this is the case x