Kotak Mahindra Bank — unlawful charging of renewal of credit card which was never received by me

I am having savings bank account no. Xxxx2516 with kotak mahindra bank. The bank sent me a credit card in last year but the same was returned back as undelivered because i was out of station. The bank accepted this fact in their mail also. Besides, i received a call from one mr. Ashwini, my customer relation officer who accepted the bank's mistake & informed that the entire amount wrongly deducted would be refunded in 2 days time. However, almost10 days have lapsed but refund is not made till date. I request you to escalate the issue & help me in getting the refund. Thanks.

Pravin kulshreshtha
Mob.[protected]