We've got you covered with 25 customer apology letter templates so you can swiftly say "I'm sorry" and start delivering a solution. Get 4 email templates you can send out to customers when their order is delayed due to production issues.In this article, we'll cover everything you need to know about writing apology letters and provide 5 templates you can use to get started today. Need to write a great apology letter to your customers? A good business apology letter to customers can make up for bad service, errors with orders, and more. Find out what goes into writing effective, heartfelt customer apology emails with these best practices and free templates. Why am I receiving a backorder letter? You are receiving a backorder letter because the item you have requested is currently out of stock. Here's the letter I sent my client: The Customer Service "Expert" makes mistakes, too. I'll let you know how things pan out with my client in a future email.