Closet drama

Ever since I moved in to my apartment, the shelving unit in my closet has been crooked. It's not bad enough that the clothes slide down the bar or anything but it is noticeably crooked. I thought it was just installed without a level by some total idiots. But now I think it wasn't in securely from the start. On Sunday, I heard this cracking sound, went to look and saw that of the three brackets that hold up the shelf and the hanging rod, two of them are hanging by a thread. In other words, each one has more than half of their screws out of the wall. Lovely. I'm guessing this didn't happen all at once. And all I need is to have that come crashing down! So I was kind of worried about it Sunday night and called maintenance first thing Monday morning. No one came. So I was worried about it again Monday night, especially because I heard more slipping sounds. On Tuesday, they came apparently. Well, they left a note on the door saying the requested maintenance was performed. But absolutely nothing had been done! REALLY frustrated by this point, I called our management company yet again Wednesday and explained that nothing had been done. She promised to talk to the maintenance people again. Last night, I get home and there's another note on the door that they came. This time it says that they'll be back on Thursday but that I need to remove everything from my closet. Aggravating. I had removed all the stuff on the shelf and all the hanging stuff... if they really needed all of the stuff that sits on the floor removed too, couldn't they just slide it all out themselves? Also, it's worth pointing out that our apartment only has three closets - one in each of the bedrooms and one small coat closet right when you walk in the door. So it's not like I have anywhere to put all this stuff that I've now had out of the closet for four days. Also, I have a LOT of stuff crammed into that closet. Luckily my roommate is out of town so I'm using his room a little. But it really aggravates me that something as simple as coming in to re-install a closet shelf has now taken four days. And I will be livid if it is not fixed when I get home tonight.