PC Fair Day Two

U know. Really. I am now being pushed to the edge. Uhhhh!
Today's cash short of like, five hundred ringgit.  What!?

Ok let me explain.
See, I work as the CASHIER for PC IMOOT.  (the company's name has been made up) . PC IMOOT placed me under Logitech Booth with another three Logitech promoters who have nothing to do with PC IMOOT. 

Now. As the cashier, I am in charge of the cash only. Whatever the promoters sell, they have to go through me for money. They name the amount, I give the money they  needed.
First, all cash bills are hand written by the promoters.
Second, all sale records are not computerized. We do not have a proper cash register.  All they gave me was a canvas bag to hold the cash.
Third, one day's sales can exceed five thousand.

Look, I think it is really illogical to manage sales this way.
Now short of five hundred, i hope they won't blame it on me. Really.
The promoters might name me the wrong amount??  Or the hand written bills are faulty?? Why it has to be me??

Duh. 
Five hundred.  Lol.
Very.  Very. Very. Speechless.