I am writing to confirm my acceptance of your employment offer on April 20 and to tell you how delighted I am to be joining XYZ Corporation in Chicago. My employer is saying that I must give 30 days notice as per my offer letter and will not accept 2 weeks.I would suggest offering a full month's notice as opposed to 2 weeks. Give them the option showing you do not want to 'leave them hanging'. My lease is up at the end of August. Can I get an apartment with just an offer letter? The Frequently Asked Questions (FAQs) provided below highlight topics and specific questions that are often asked of the Illinois Department of Labor (IDOL). To avoid confusion, you can confirm your notice period and start date in your acceptance email. Learn how to write a letter for declining a job offer that you have already accepted and use our template and example as a guide. Download and complete Motion and Notice forms from the Illinois Office of the Courts.