An acceptance letter confirms you are taking the job and shows your appreciation for the offer. 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.A sample letter offering a job contingent upon the results of a background check or other criteria. There are 7 acceptance letter samples you will see here. They can be used for different purposes. The AA will contact the candidate to request a signed "Candidate Statement of. Authentication Regarding Qualifications and Background. Send a polite little note to let them know that I'm genuinely sorry that I haven't heard from them, that I have a written offer from another organization. As a general rule, an offer may be rescindedits just an offer, not a contractin fact, it may be withdrawn after acceptance too! How long does it usually take to finalize an employment offer?