Mention following things in your mail: Sample Reply: Thank you so much for offering me the job. Extend the start date if possible.A background check can take a while even if all the information you've reported is accurate. To create an applicant account, go to Career Pages website and click on the Sign In tab, and then Don't have an account? If you are a qualifying applicant, please attach your DD214 and any other relevant documentation to your application if you wish to claim veteran's preference. This guide describes how to apply for jobs using the Career Page web site. The process consists of the following steps: A job acceptance letter lets you outline the details of the job so that you are clear about your role in the company prior to your joining.