Flipkart — Refund not received from Flipkart in axis bank debit card

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www.flipkart.com

Sir, on 2th Oct I ordered a Realme Gt Master Edition phone for rs-18999 from flipkart by axis bank debit card. My order id - OD[protected]. On 4th Oct I canceled it and the promise date of refund was on 8th oct. After 8th oct when I did not receive the money to my account I called flipkart customer care they told me -- Thanks for reaching us. Seller has refunded Rs. {18999} to your {bank account}
on {02 oct} . In case of any delay, please check with your bank using refund reference number {6331973709916087906097}. You can find your bank's customer care number behind your credit/debit card or on their website., Phone Number: [protected]. But when I went to my bank brunch they are saying they have not received the money and the refence number flipkart is giving they don't have such reference number and their reference number contains "axs" at the beginning. Then I again called flipkart but they are giving me the same details. I don't know what to do now. Please help me in this regard.