Amazon India — Money Not Refunded by Amazon

Address:

India

I had ordered a tripod on 08th Oct 2020 from Amazon and I got delivered it on 13 Oct 2020, I paid 379 rupees cash on delivery. I opened my package, Tripods plastic was broken. Amazon delivered me a defective product. On the same day, I requested to replace the product from the Amazon app. The next morning a guy came to pick up my tripod, he said 'your replacement of the product has not initiated so you will receive your money back in your bank account within 7 working days'.
Today is 25 Nov 2020, 41 Days gone. Neither I got my replacement nor I got my money back. This is the best worst thing I didn't expect from amazon. I request amazon India please refund my money as soon as possible. My contact number is [protected]