Call or email the person who made you the written offer. Say that you're following up and want to make sure they received your reply accepting the position.Most companies will notify that they have received your application, but there is not an automated rejection. Here's how to write a response to a job rejection letter. Show some gratitude. You should definitely talk to HR and insist on a real answer. If you don't get one, the answer is "No, we didn't really offer you a job. Here are exact word-for-word email samples you can start using right away. Use them in your emails, LinkedIn messages or whichever platform you use to network. If you don't receive a reply, you could also consider calling their office or contacting someone else in the HR department.