I don’t know if the coax cord wall outlet is working. How do I go about this with new landlord?

Unfortunately it is late here now. I texted asking about it. And I’m hoping they understood what I meant when I said I’m a full-time student with my own internet which means I need the wall outlet for my coax cord. I’ve tried 2 different coax cords. My internet is in service & modem is working, it’s just not receiving anything from the coax cord.

If they act dumb about not knowing about the wall outlet after I’ve already paid my rent + damage deposit. And on the day I viewed this suite I pointed at the coax cord outlet and said “sweet I can hook up my own internet here for my schooling” and they said “yeah, okay good”