Adidas — More than promised 14 days Refund not processed

My order no - AIN01008470

Adidas has stated that I will get my refund within 14 days but it's been more than that and they still haven't refunded yet. I have sent 10 emails already to their email but no reply. Neither does the customer service number work.

I paid for my order using cash on delivery but still, they haven't asked for my bank details for the refund process.

I kindly request Adidas to start my refund process.
I did not expect this from such a big and reputed company.