Dear ชื่อลูกค้า,
Apologize again for this order not complete with you but I check postoffice wrong send the item to you. I feel very bad for my customer not get an order correct and complain to an employee more than. Him said, "Sorry and will improve." Now, I need responsibility by refund money back to you. Sorry again, and hope you understand this case. Thanks.
Best Regards,
.....................(ชื่อร้านค้า)