Notwithstanding the provisions of R10-3-302, a charge is deemed filed when the Division receives from the Charging Party, a written statement sufficiently precise to identify the parties and to describe generally the unlawful action or practice. A charge may be amended:
The amendments alleging acts occurring before the filing of the charge which constitute unlawful practices directly related to or growing out of the subject matter of the original charge shall be deemed to relate back to the original filing date.
Ariz. Admin. Code § R10-3-303