Hurt, disappointed and broken

I bought Neutrogena face care range at Foschini on the 26 May 2015 the very same product I'd been using for over three years, not realising the products had expired I started using them on my face until three days ago I started developing facial irritation leave my face red and itchy, I looked at the products and discovered they had expired, I returned the products today 04-06-2015 only to be laughed by the ladies at the till while assisting me with her colleague. I feel so hurt to have had received such horrible service from foschini, what's worse is that the very same expired products were still on the shelf to be sold to other consumers