Caller: no idea. fake security office for Mastercard and VISA

I picked up the mobile (that is hardly known or used at all) and I think an Indian caller stating that they are from a security centre for Mastercard and VISA, asked me how my day is and there is a charge on my account for more than 2 thousand. I asked them to state what my name was and they hung up.
They're scam operation has rung up on other mobile numbers (this is the third attempt).