If you have made an offer and would like to cancel it, there are a few things you need to do. First, make sure that you have the offer in writing. If not, you can still cancel the offer by emailing or calling the person who made the offer. Second, be sure to keep track of when the offer expires. If it is less than a week away from expiring, send a reminder email or call to let the person know. Finally, be polite and respectful when canceling an offer. Don’t be abrupt or angry; instead, explain why you are canceling and how you would like to proceed. ..