[Resolved]  Adidas — Fraud/SCAM done by Adidas- sent wrong product, denied refund

I ordered an Adidas track pant from Adidas with order id:[protected]
They sent me a wrong article of diff size, different colour and absent side stripes, I emailed them the complaint along with pictures if wrong product received, they accepted the return and initiated my return pick up on 09/07/2021 and they received it on 11/07/2021. They were supposed to refund my money by 12/07/2021 but they didn’t. They did not respond to all my emails until today.
Today when I called them, they denied my refund. How are they supposed to do such big scam of sending wrong product and looting money from customers like that? Please help me