When a payor of income is unable to continue withholding from an obligor's income because the relationship between the payor and obligor ends, the payor shall send the department a written notice of termination within 15 days. The notice must include:
1. Obligor's identification. The obligor's name, last known address and social security number;
2. Department case number. The obligor's department support enforcement case number;
3. Termination date. The date of termination of the relationship; and
4. New payor. If known, the name and address of a new payor of income to the obligor.