Power outage in just my apartment unit

My power suddenly went out last night in only my unit. I tried resetting the breakers and called comed to see if it was an issue on their end which they told me everything was fine and to talk to my apartment leasing office. Today is a holiday so they are closed but our emergency matience came out and switched on the breaker outside where the meter is and that fixed it for about 2 hours and now its out again. Its 100 degrees and everything in the fridge is already ruined since its been over 12 hours with no power and im starting to go crazy with the heat. Why would it go back out? Please help