Samsonite Respark Spinner Wheels Broke After Two Uses - Warranty Denied

On July 7, 2025, I purchased a Samsonite SKJ3-005 Respark-Spinner (Ozone Black) cabin-sized suitcase from the Optimum store in Izmir. I only used it twice, and the wheels stopped spinning on the second use, without any notice. This problem probably occurred on the first use, but it became most noticeable on the second. A maximum of 8 kilograms of items can be carried in this type of suitcase used as carry-on luggage, and I was concerned that this limit was exceeded. I can't understand why the product failed so quickly. This is a suitcase, and you can't believe in its durability by trusting the brand. Even if it were checked in, a quality product shouldn't have such a problem within a month. The refusal to acknowledge the defect in a suitcase treated almost like a handbag, and the company's completely uninstitutional approach, has seriously damaged my trust in the brand. The company should have stood by its case. After noticing the problem, I took the suitcase to the Izmir Hilltown store on August 7, 2025. They said they would review it, and about three weeks later, on August 29, 2025, they returned the product with the statement "not a manufacturing defect, but a user error." It's only used as carry-on luggage, and this type of problem with a suitcase we overload is considered user error. To counter claims of improper use, both the company and the website host cameras. They can provide the company with data on the suitcase's weight and components. Furthermore, I believe that the product may already be defective due to the malfunction occurring so quickly. I contacted the store staff and customer service, but was told, "This is the decision; there's nothing we can do. You can send an email." I sent the necessary emails, but I haven't received a positive response. My product is still under warranty, and I paid the purchase in six installments, two of which have now been paid. Invoice number: DE12025000144271. I refuse to accept that a brand like Samsonite, which prioritizes customer satisfaction, stands by its customers. I would like to emphasize that I will demand a free replacement of the product, or if necessary, I will pursue legal action.