Monginis Cake — Stale cake provided

We bought a rainbow cake from Moginis store Ambernath east. When we open the box it was slight smelly but then we still cut the cake and had one bite... it was stale cake... i took that cake again to the shop...The shopkeeper didn't agreed that it was stale... she was arguing that this cake is for childrens... I have this rainbow cake everytime. So not sure why this cake is meant for only children. I have thrown that cake in their dustbin... loss of money and loss of happy occasion.