Missing Item- Complaint Regarding Call Centre Conduct

To Whom It May Concern, I am writing to express my extreme dissatisfaction with the service I received from your call centre agents today. I contacted CourierIT several times in an attempt to resolve an issue with a missing item from my recent Adidas order (waybill number: AZA***6). My order was delivered in two boxes: one containing a pair of sneakers and the other a t-shirt. However, a second t-shirt that was part of the order is missing. Despite my repeated attempts to explain the situation, the call centre agents I spoke with displayed a shocking lack of professionalism and a complete disregard for my concerns. Instead of assisting me with tracing the missing item, they engaged in casual conversations with each other, completely ignoring my requests for help. This level of incompetence and disregard for customer service is unacceptable. I request your immediate intervention in this matter. I need CourierIT to: Locate the missing t-shirt from my order (AZA***6) as a matter of urgency. Provide a clear explanation as to why the item was not delivered with the rest of my order. Address the unprofessional conduct of your call centre agents. I expect a prompt and satisfactory resolution to this issue. I have attached a copy of my order confirmation and the delivery slip for your reference.