Amazon India — refund not issued / refund details not shared

Address:

203201

I placed an order to amazon and paid rs.11, 790/- in advance payment on 18 november 2018. The order was cancelled by amazon citing my address as out of delivery area. I received an email from amazon on 27 nov. 2018 that refund has been processed. I again received an email from amazon on 30 nov.2018 intimating me my six digit refund reference number. I had paid from yes bank saving account debit card (Master card) so payment was to be credited back to that account only. But it is not credited back till date. I contacted yes bank customer care they are insisting on 23 digit refund reference number to be able to trace the refund. Amazon is not co-operating and not intimating us the 23 digit refund reference number or giving us any other documentary evidence of refund done from their side. I have lost my hard earned money.