UNAUTHORIZED CHARGE TO MY ACCOUNT

I AM FURIOUS- JUST NOTICED MY CHECKING ACCOUNT WAS CHARGED $74.98! A FEW DAYS AGO AND I JUST SAW IT!    NATURALLY THEY ARE CLOSED BECAUSE IT'S THE WEEKEND.   I AM SOOOOOOOO MAD.   I WILL BE AT MY BANK ON MONDAY WITH A COMPLAINT AND SEE WHAT I CAN DO ABOUT THIS.   I CAN'T EVEN TAKE THE STUPID INSTAFLEX BECAUSE (UNKNOWN AT THE TIME I ORDERED THE TRIAL BOTTLE) IT WOULD INTERFERE WITH MEDICINE I'M ON.   GRRRRRRR.