Adidas — Wrong product

Order no. AIN01016165 Arwaz Hossain .
I got a wrong product and I captured a video at the time of delivery but adidas didn't refund my money for almost 2 months . I call them and they just give me a time by time for 2 months. Please help me to get the refund. I sent the wrong product to adidas but there is no positive response from adidas and I am tired of calling them. Adidas has the worst customer service I ever experienced. I am really very frustrated by the behavior I am experiencing with their agent too.