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.Sometimes, saying sorry isn't enough. Use Canva's apology card template to express heartfelt remorse. Dear Customer, I apologize for the lateness of this order. It is not the way we like to treat our valued customers. A good business apology letter to customers can make up for bad service, errors with orders, and more. I am writing to you today with a heavy heart, filled with regret and remorse for the pain I have caused you. Please accept my sincerest apologies. 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.