Canara Bank — money refund by amazon but not credit my bank account

Address:

vpo.bhora kalan, dist-gurugram, Gurgaon, Haryana

Dear sir

I purchased a product on amazon on 15th october using my canara bank debit card but fake product received and i returned the product and i asked then for refund. As per their confirmation refund was initiated on 18 th october maximum time frame was 5 days. Still it was not reflected in my account. They had provided the refund reference number as[protected]. I had contacted your customer service number and branch no proper response. Please check and confirm the status if your respon.