Say "I'm sorry I hurt you", not "I'm sorry you felt hurt". It's just a system generated message based on case time.Making a Sorry for Out of Stock Item Letter online is simple. Just answer a few questions, and Rocket Lawyer will build your document for you. 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. I deeply apologize for what I have done and the amount of pain and hurt that I caused you. I owe you a sincere apology for my actions. Thank you for being an ACME customer. We are writing to let you know that there is a slight delay in your refund.