Hacked Credit card

My credit account has been hacked and payments has been made to US based companies. I did not get any message to authorize any of the payments made on my account.(I've never used my card online to purchase anything only in store, my card was with me 24/7 aswell)When I called the 24h ***** help line an arrogant lady that was not in the mood to help answered the phone and told me that the only thing I can do is block my card and that I would net get the money back Imagine trusting your hard earned money in a bank where it can dissappear in a matter of seconds.