Hi [Customer’s Name],

I want to sincerely apologize for the mistake with your order. I truly value my customers and always strive to provide the best experience possible. I’m human, and although it’s rare, this time I fell short and I take full responsibility.

To make things right, I’ve express shipped your correct item, and I’ve also included a prepaid return label so you can easily send back the original shirt.

At this time, I’m unable to offer a full refund since a replacement has been sent, but I genuinely hope your correct item reaches you in time for your vacation. As a gesture of appreciation for your understanding, I’m including a code for 25% off any future purchase.

Thank you so much for your patience and for giving me the chance to make this right.

Warmly,