I am a resident of The Fillmore Center. My roommat...

I am a resident of The Fillmore Center. My roommates and I lost several packages already but resident services didn't take any responsibility. I am completely sure that our packages were delivered to resident services. They just kept telling us to check Luxer and our mailbox. One of my roommates said she had been looking for her packages for over a month but resident services just said that they cannot find her package it should be a problem with her delivery carrer, USPS. HOWEVER, after a month I went to resident services to get my package but they found my roommates package that had been missing for over a month. This is extremely ridiculous. Today, my other roommate went to resident services to get her package that was sent from the same store, both were delivered at the same time and signed for at the same time. Only ONE package was found. Resident Services said that they cannot find the other package and to contact the shipper because no one with that name works at the office, then how was one package found and the other not? It came from the same shipper from the exact same store. Since Resident Services told us that they return packages if they're not picked up within 3 days we always go on the first or second day but they keep saying come back tomorrow well if we come back on the 3rd day how do we know that our packages are not already returned for no reason?