Red Ribbon Bakeshop review: unethecal behavior about your staff/cashier

Good day! Mam/Sir I am very disappointed the way your staff treated me today at your branch located @GAISANO MALL KABANKALAN CITY, NEGROS OCCIDENTAL. I wanted to buy 1PC INDULGENCE CHOCOLATE CAKE worth SIX HUNDRED PESOS PLUS. They told me "MAAM WE DON'T CATER RESERVED NOR ALLOWED ANY PURCHASED LEFT HERE" . Ok i'm going to buy some groceries first, before that I saw the other staff carrying 1 box of cake inside thier stock room from a customer i followed. I don't mind, after 30mins I came back I told them about the cake they prepare, put in a box I give my payment to the cashier worth one thousand pesos. She ask me if I have one hundred pesos?I told her, I don't have any small bills, THEY ANSWER " WE DON'T HAVE ANY CHANGE(SUKLI) IF YOU WANT YOU CAN COMEBACK LATER. OH! IVE ALREADY DONE MY GROCERIES I CARRIED A HEAVY PLASTIC BAGS. I ASK THEM, CAN YOU PLEASE FIND WAYS? THEY ANSWERED... WE CANNOT SELL COZ WE DON'T HAVE ANY CHANGE LEFT COZ WERE BUSY LOTS OF CUSTOMER...REALLY?I'M THE ONLY ONE CUSTOMER LINING AT YOUR CASHIER? THEY KEEP REAPEATING THOSE WORDS "WE CANNOT SELL COZ WE DONT HAVE CHANGE'' THIS IS THE WAY YOU TREATED YOUR CUSTOMER MAM/SIR?