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. The automated appointment number is 1877-487-2778.An appointment letter is a formal document that a hiring manager uses to present a candidate with a job offer and outline the aspects of the role. To notify us of your decision and release your seat in the entering class, please fill out the online decline admission form. And if they refuse at first, they will often accept if you offer to pay the first few months of rent in advance.