Письмо-жалоба на английском о умной ручке Класс заказал 30 ручек а привезли 15

A letter to the company that provided us with smart-pens. Hello, our letter is addressed to you as a complaint to your store. We recently ordered 30 smart pens from your store that were supposed to make our study easier. Of course, they would facilitate studies if they came in the quantity that we ordered. We have no complaints about the quality and appearance of the pens, but we upset with situation. We ask the administration to pay attention to our complaint. We ask for a refund or the rest of the pens. The authors of order number 5809.