My Black Hummel Sweatpants Developed Severe Color Fading

I purchased a pair of black, size medium Hummel sweatpants from a Hummel store in the Aliağa area of İzmir a little over a year ago. Recently, the product developed a serious color-fading problem. I noticed it approximately one week ago, and the discoloration has become clearly visible across the fabric.

I did not keep the receipt or invoice, and there is no Hummel store where I currently live. Therefore, I cannot take the product to a store to request an inspection, replacement, or refund. Even so, experiencing this level of fading on a branded product within a relatively short period has left me disappointed with both its quality and durability.

I am requesting that Hummel inspect the product and provide the necessary assistance if the problem resulted from a manufacturing defect. If possible, I would also like help obtaining a replacement or refund.