Amazon — Didn't received the refund and they not helping.

I made a purchase from Amazon on 13 Feb 2022 but the order was not delivered to me. I requested refund and Amazon say they have initiated it on 20 Feb 2022 . I still haven't gotten the money in my account and I did everything what they told me to. Go to bank, file a charge dispute form everything but still nothing. All they provided was refund reference number #[protected]
And nothing else.now they are not even helping.