Old cake and lies

I bought a slice of the baked chocolate cheese cake. It was old, like rubber . The cream cheese was yellow in colour. I called to complain and spoke to a lady by the name of Leo. She said she will investigate. When she called she **** and said the piece of cake I bought was cut this morning from a frozen cake. If anyone knows, their cakes are generally frozen and fresh. When I told her it can't be and she was lying, I said I will return the piece of cake and show them in front of customers, she quickly changed her story saying she was still investigating.