Rotten goods, unsanitary with bugs all over! Serious health violations!

My mum purchased a bar one cake at the Woodmead branch on Sunday for my birthday. The cake was off and tasted bitter. It smelt like alcohol and the cake on the inside was extremely dry and off colour. Seems like an old cake was just re-iced and left on the shelf. We called the store and was advised to bring the cake in on Monday and we would be refunded. On Monday the store manager advised that we cant be refunded and we need to wait for head office to EFT us. She said we could take something else from the bakery however I wouldn't take that chance since their other products were left opened and there were insects inside other cakes and pastries. This has to be a a health violation. I have pictures and videos of everything as I feel its very unsanitary and could pose significant health risks. I'm so glad non of the kids ate any of that cake and we discovered that it was bad in time. I still haven't heard from head office regarding this issue yet and I feel like its only appropriate to get the health department involved.