Mc Donald'S

I ORDERED FOLD OVER MEAL WITH CHOCOLATE MILKSHAKE IN MC DONALD(CNR PAUL KRUGER AND PRETORIUS). I WENT TO WORK, WHEN I STARTED EAT MY SHAKE WAS ROTTEN, I WENT BACK TO TELL THEM THEY SAID ITS NOT POSSIBLE BECAUSE IT EXPIRES IN OCTOBER 2020. I TOLD THEM TO TASTE THEY REFUSED. THEY JUST LOST A CUSTOMER