Worst experience with online returns

I am beyond furious with Adidas! I bought a pair of shoes for my child on November 19, 2024, and when they arrived, the size was too small. I immediately logged a return request on their website, but nothing happened. I then went to TWO different Adidas stores, only to be told they don’t accept returns for online orders—seriously?! From December, I called them nonstop and sent emails every other day, but most of the time, they ignored me. When they did respond, they just fed me empty promises. After finally getting through to someone in January, I was told they could see my return request but that it had been CANCELED—by WHO?! No one could answer that. They claimed they would reopen the return, but after calling almost every single day, I keep hearing the same nonsense. Today is February 20, and guess what? The shoes are still sitting here, uncollected! This is the worst customer service I’ve ever experienced. Adidas, this is completely unacceptable!