You can simply say: "No thanks. " (And even the "thanks" is optional).An exploding offer is when a company gives you a teeny tiny window to make a decision of whether or not to take a job offer. Generally it's 24 hours or less. A sample letter offering a job contingent upon the results of a background check or other criteria. How To Accept A Job Offer: Learn the best tips on how to answer accept a job offer along with three professional templates. An example phrase to use would be "Hello. We provide seven job acceptance email templates to help you craft the perfect response, ensuring a formal acceptance of the position. Can I back out of it if I receive a better offer from another company? Follow these step-by-step instructions to create job-offer letters that reduce legal risks.