Bulfleet.com - Official Forums

If you want the admins to return your lvl3 mine,first you need to point your nickname and coordinates,and universe Or to write a PM Good Luck On the other hand I haven't seen such a problem-maybe relogin can work...

I don't think your case is a bug ... I think you have not upgrade all mines to lvl 3 ... When you click to build next level of mine just refresh the page and be sure that mine really build in the moment