Caller: Scam mungers

Scam mungers, asked for me by name, I just asked who was calling. Man with a cent said, he was ringing to tell me my credit card had been accessed this morning. He said $900 had been taken out of account this morning. I hung up, I am a pensioner and know I do not have that much money in my account. Also I know my bank would have been the ones to contact me, for any abnormal transactions from my account.
Please be careful with any online shopping. There are a lot out there trying to make easy money.