Adidas Refused to Accept My Unused Product With Tag Still Attached

I purchased a product from Adidas and decided to return it just two days later, without having worn it at all. The item is in flawless condition—totally unused, with the tag still attached, just as it was on the day I bought it. When I visited the Gaziantep Sankopark branch, the staff informed me that I was not entitled to a return. I was truly surprised by this response, as I anticipated a more seamless and supportive experience from a reputable brand such as Adidas. The staff showed little initiative in clarifying the policy or providing any solutions. I was simply making a fair request, not attempting to return a used item or take advantage of the system. I would greatly appreciate it if my return could be processed promptly and with care. Thank you!