Amazon customer service is great and they always give information time to time. Amazon services are best. If I talk about products quality than Amazon gives best quality and Amazon never gives duplicate products. Delivery time is less and Amazon delivery service is fantastic and fast because I always order products from Amazon. Different between app and websites in app we get facilities better than websites and in app doesn’t take time to in loading. Reliability of Amazon is strong because I have ordered many products from Amazon and I always get time to time service from Amazon.