FRAUD FRAUD FRAUD!!! I never called or accessed th...

FRAUD FRAUD FRAUD!!! I never called or accessed them online, yet I was alerted by Chase Credit Fraud Services that they made a 35 cent charge authorization that looked fraudulent on my card without my authorization. It happened on the same day I ordered some CBD oil online. I don't use this card but 2-3 times a year. When I called them, they have no record of me or this transaction, so they say. I'd like to know how they got my card number and started an authorization to set up a monthly charge for a life monitor I never ordered?