My credit card was misused for 20000 to buy Facebook ads. I recieved a msg at 17:44 GMT on 15 December about the transaction. I called the bank and they confirmed the card was already blocked because there were several transactions attempted after that as well. They have askede to sent the documents like a declaration , passport, fir ,etc. It was an international transaction and hence OTP was not generated for this transaction. On probing more, the bank executive said that the transaction was done from Ireland. The card was always in my possession and I have never shared the card details with anyone.