I recently took a hair follicle and my results came back positive for cocaine. I have been working in the refineries since 2006 and I've never did any drugs. Me staying drug free is my livelihood for me and my 4 kids. I know DISA standards to well to put myself insuch predicaments. I have no money for a substance abuse class and that's an insult to my character. What other steps can I take to get a retest?