DS Damat Defective Shirt & Extremely Rude Manager: "It's Your Problem Now"

I am writing to report the unacceptable product quality and customer service I experienced at the D'S Damat store located at Asmalı Mescit, İstiklal Cd. No:120, 34430 Beyoğlu/İstanbul. Yesterday I purchased three shirts from this store for a total of 13,500 TL (4,500 TL each) and had them tailored to my size. Today, after the tailoring was completed, one of the shirts developed loose threads coming out of the shoulder seam, which is clearly a manufacturing defect and not caused by use. When I returned to the store and spoke with the manager, I clearly stated that I would accept any reasonable solution, including a replacement, a repair, a discount, or a refund for the defective shirt. Instead of offering any assistance, the manager responded with the statement: “Yes, we didn't damage it, but now it's your problem. Complain wherever you want, we don't care.” This dismissive and disrespectful attitude is completely unacceptable for a brand that presents itself as a quality menswear company. The product is clearly defective, and the store has refused to take any responsibility or to offer even a basic customer-focused solution. I am aware that under Turkish consumer law (Law No. 6502, Article 11), consumers have the right to a refund, replacement, or repair in the case of defective goods, yet the store has ignored these obligations. At this point I am not asking for a refund; I am filing this complaint to publicly highlight the behavior of this branch and to draw attention to the quality control and customer service problems at this D'S Damat store in Beyoğlu. I expect a written response from D'S Damat’s corporate management regarding this incident, the attitude of the store manager, and the steps that will be taken to prevent similar situations in the future.