Amazon India — Refund Initiated but not received still

Sir my refund for The man hair oil ( rs. 239) was damaged and I contacted customer service and amazon refunded the amount But the amount is not credited in my bank account. And amazon told me to contact bank and when I contacted bank they said that we can only tell you if the amount is received or not. And amazon sent me a reference no 30005110431043093625190 after 12 days of order received I have not got any amount back.