So I've had my house with a nice claim for a few weeks now. Well the user "macekj" has a 9x9 claim in front of my house where I want to expand. He has no chest, no house, no anything there. Just a random claim that he has never been too. I've seen the username online but never near me and I've only just noticed it trying to expand. I haven't seen him on in two days so what can be done?