1. Late delivery
Subject: Sorry your order is late. Hi [Name], thank you for letting us know, and I am sorry your order [#number] has not arrived when we said it would. That is on us. I have checked with [courier] and it is now due on [date]; here is the tracking link: [link]. I will keep an eye on it, and if it is not with you by then I will send a replacement straight away. [Your name]
2. Damaged item
Subject: Sorry your [product] arrived damaged. Hi [Name], I am really sorry your [product] arrived damaged. That is not how it should have reached you. Could you reply with a quick photo? As soon as I see it I will send a replacement or refund, whichever you prefer, and you do not need to send the damaged one back. [Your name]
3. Wrong item sent
Subject: We sent the wrong item, sorry. Hi [Name], you are right, we sent [wrong item] instead of [correct item], and I am sorry for the mix-up. The correct one is going out today by express post and should arrive by [date]. Please keep the other one, or pass it on to a friend. [Your name]
4. Sold something that was out of stock
Subject: Sorry, your [product] is out of stock. Hi [Name], I am sorry, the [product] you ordered sold out before we could pack your order, and our stock count was wrong. I have refunded [amount] in full; it will show in [X] business days. If you would still like one, we expect more on [date] and I can hold one for you. [Your name]
5. Poor service or a slow reply
Subject: Sorry we kept you waiting. Hi [Name], I am sorry it took us [X days] to reply to you. That is not the service we want to give. To answer your question: [answer]. Thank you for your patience, and if there is anything else I can help with, reply here and I will get back to you today. [Your name]
6. Customer complaint response
Subject: Thank you for telling us. Hi [Name], thank you for taking the time to tell us about [the problem], and I am sorry. You are right that [acknowledge what went wrong]. Here is what I am going to do: [action] by [date]. We are also [change you are making so it does not happen again]. If there is anything else that would make this right, please let me know. [Your name]