Us, 651-284-5075 or 800-342-5354. MN: Gave 2-week notice to employer, taken off schedule immediately, now being told they won't pay out my PTO due to not giving 30-day notice.State the purpose of the letter early. Clearly mention your intent to resign and your last working day. Learn how to write a professional resignation letter with concise tips and examples. The employee's written request must be made within 15 working days of termination. In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. If one resigns but the employer elects to end it early, two things happen. A resignation letter may also be called a "Two Weeks' Notice Letter. " This is because giving two weeks' notice is customary when you leave an employer.