Where are you Yeld? If in Central Region, the Supplemental Agreement states, Art 5-Grievances, Sec 1:
"The grievance shall be discussed with the employee's immediate supervisor or with the aggrieved employee and his/her shop steward. If the grievance is not resolved within one (1) working day:
(a) The employee shall report it to his/her shop steward in writing within five (5) working days. The steward shall attempt to adjust the matter with the supervisor within forty-eight (48) hours.
After these steps have been taken, the grievance process is on it's way and out of your hands until time to testify at various local, state or JAC panels.