Bad recruiter

How can a recruiter invite to do an assessment and said that one should be there at 8 o'clock and do not evens check up on you. You sit there the whole day without communication from your recruiter. The other recruiters interact with those who they invite. The name's of the recruiter is Monique. She clearly dont give a f**k .The only time she camed around was past 4 to let a person know that they will assist a person soon. Mind you this there was little computers but how can they operate like this. I got home evens late because of sitting there the whole day. I could of do something else that. Geez it was the worse day of my life. i wanted to cry because one dont do that to the next person.