Angry customer

I've had issues with my App since the weekend, I can't place an order for delivery as suddenly they do not deliver in my area(Protea Glen ext20)so I finally decide to call the contact centre for assistance. Pearl takes my call,from the beginning of the call she sounds clueless and also makes mention that there's nothing she can do. I ask her if I can speak to her manager as I need this sorted out,she then tells me to make a plan bcos she can't help. How *********** us tht, I've used the app for as long as I can remember and they have delivered to my area, why the sudden change? Why was this not even communicated with customers?