Adidas ZA: a month later, and I still haven't received my refund nor my order

On 31/07/2023 I ordered a jacket from the Adidas. On 10/08/2023 I received a tracking email to track my delivery, was asked to confirm my delivery address, and confirmed my address on the same day. On 12/08/2023 I received a email stating that the courier tried attempting delivery and confirmed my address a second time. During this time the courier did not once try and call me on my mobile to try and confirm the address. After calling the Adidas customer service line I was told that the courier attempted to deliver twice (the courier again never tried to call me) and that my order will be returned to the warehouse and that once it reached the warehouse my refund will be processed. On 14/08/2023 I received a email from the Adidas customer service team (Bornalee) stating that my refund refund should be credited within 14 business days to the original method of payment used to place order. On 05/08/2023 I emailed the customer service team stating I haven't received my refund, my email was acknowledged on 16/08/2023 stating, The refund procedure starts once the parcel is received at the warehouse. The refund should be credited within 14 business days to the original method of payment used to place order. On 11/09/2023 I received another email from the Adidas customer service team stating that my case has been escalated to the specialized team and it is under investigation. You will be informed as soon as I get the update. it is 15/09/2023, a month later I still have not received my refund or the item I ordered in the first place.

I would have never expected to receive this service from one of the biggest sportswear / athleisure brands in the world.

I would like to receive clear feedback along with a refund timeline from the Adidas ZA team.