Amazon India — unrecognized charges deducted from my credit card on every month since last few months

Address:

Howrah, West Bengal, 711104

Every month's 12th of the day 169/- Rs. deducted from my credit card. I have not any subscription or EMI like this amount. contact with them several times but they can't help, they requested to send a mail at [protected]@amazon.in regarding this problem but given mail id was wrong. showing an error "THE ADDRESS COULD NOT BE FOUND" now even I can't contact with them on helpline also. this is a very frustrating situation. how can I stop this? please suggest.