You have no idea what they are going through. Our free customer apology letter templates and comprehensive guide make it easy to craft an effective customer apology.Put your pride aside and accept you're at fault for what happened. Get 4 email templates you can send out to customers when their order is delayed due to production issues. It's never good to force an apology. It will not be genuine, especially if they already have a mindset of not offering one in the first place. Please accept our deepest apologies for the delay in your service. I'm sorry for the silences I should have filled, and for the noise I made that was unnecessary. I am writing to sincerely apologize for the oversight in the recent project. In this case you'll probably need to apologize, own up to your mistake, suggest a solution, and only then ask for forgiveness.