my daughter is 18 she got hired at walmart in december of 2010 in the deli dept. on march 15 they decided that since she is still in high school that she is considered a minor.they want her to get a work permit which the school wont give her because she is 18.they want us to sign a paper to give consent to a drug test and background check that they did in december. we refused because its already done why give consent now so they fired her .is there anything at all that can be done about this