PART TWO OF EMPLOYEER DEDUCTING FROM SECOND CHECK?

I UNDERSTAND THAT YES THEY CAN DO WHAT THEY DID. THERE ARE FIVE EMPLOYEES WHO ALL DO THE CLEANING AS A SECOND JOB. THERE IS ONLY ONE OF US WHO HAS A PAY PLAN FOR THE CLEANING. IT STATES HOUSEKEEPING/MAINTANCE AND A DOLLAR AMOUNT TO BE PAID A WEEK. NOTHING ABOUT HOURS EXPECTED OR JOB DUTIES. THE REST HAVE VERBAL AGREEMENTS. NOTHING IN WRITTING. EACH OF US WORKS FOR THE SAME COMPANY BUT DIFFERENT STORES EACH STORE DOES HAVE ITS OWN TAX ID NUMBER. AND AFTER A YR IN JANUARY I HAVE NEVER BEEN ASKED TO SHOW A TIME CARD FOR HOURS WORKED WHILE CLEANING. AND OUT OF THE FIVE OF US MY PAYCHECK SEEMS TO BE THE ONLY ONE THAT THE OVERTIME LAW SEEMS TO APPLY. TO DATE NONE OF THE OTHERS HAVE BEEN SHORTED ANY MONEY FOR NOT WORKING THE FORTY HOURS ONE THE FIRST JOB. SHOULD I BE PUNCHING IN ONE TIME CARD? ONE MORE THING THEY ONE PERSON THAT HAS WRITTEN PAY PLAN IS THE ONLY MAN.
THANK YOU FOR PROMPT ANSWERS THE FIRST TIME.
LORI