Stolen SAPN fuse in meter box.

Hi everyone I live in Adelaide CBD, west side, last Sunday at 2am someone stole the fuse in my meter box resulted in power outage at my house for nearly 18 hours and $800 bill from the electrician. The meter box is located outside my unit and can be accessed easily as I live in a townhouse. This is the first time I got a fuse stolen, I’m shock I couldn’t understand why someone would do that? Don’t know if the fuse can be sold somewhere else, or this’s just vandalism.