Regaurding a cotinine test for a job.....?

Hello, I recently just completed a pre-employment drug screen which includes a cotinine screen as part of the requirements for getting hired, provided the cotinine test result is negative. My test was last Wednesday June 22 and my last bought of nicotine usage was on Sunday June 19. I was a pack a day smoker. For some ungodly reason these labs nor the medical review place will tell me if I passed or not (why it has to be some big secret?) that is beyond me. Im just asking for my cotinine results. I did find that the cut-off is at less than 200ng (whatever that is). But anyhow, to the point, I am a female 5'5 118lbs and was drinking alot of water , taking vitamin C, along with milk thistle to help with the clearing process if not clearing at least minimizing it at or below the cutoff level. Can someone please shed some light on this issue for me? If their cutoff is 200ng, then is there a good chance that I passed? And why wont they just tell me whether or not I tested positive or negative? Whats the deal with those people? Afterall those bodily fluids do belong to me..... Any comments would be welcomed. Thank you in advance!!!