Amazon sells a 3 pack of plastic “drain zipper”, this barbed style works better than anything I have ever tried. If that’s what you are calling a snake, and it didn’t work, you have to contact the landlord. If not, I suggest trying them before calling the landlord.
Vastar 3 Pack 19.6 Inch Drain Snake Hair Drain Clog Remover Cleaning Tool https://www.amazon.com/dp/B01DP87IF8/ref=cm_sw_r_cp_api_i_scufEbBXRYFQJ
These remove-hair-from-the-drain things.