[Resolved]  Axis Bank — All my credit card details are not secure

Address:

BETHUADHARI , NADIA ,741126

Today 7 thousand taka was deducted from my account by introducing myself as Axis Bank official. They had all my credit card details and I thought they were the official of Axis Bank. Because all the transitions have given its complete details. Accordingly an OTP number is taken from me through SMS and then the money is deducted.
And when I mentioned this to Axis Bank customer care, they looked casual and I didn't get my correct answer.Instead I was told that I may or may not get the money. And then a ticket was created and when I called customer care again about the matter they hung up on me before they could hear me fully.
And when I paid on my credit card how did those people know that I paid on credit card. I don't see any security and solution with this bank.