Corporation Bank — Bank has not processed refund from Amazon

Dear sir i was supposed to receive a refund of Rs 339 from Amazon.in on 5th October 2020. I had paid the same via Debit card and they had processed the same on 29th September 2020. so by now it should be reflecting in my account. I have also filled a form and submitted it physically in the bank 20 days back. Amazon have already initiated the refund from their end and the reference number is 30005402740272147010557