You'll want to make sure you have the latest iOS 6.2.1 version of the My Bath & Body Works mobile app installed.
There is a known issue with the iOS 6.2.0 version that may result in the app getting stuck on the loading screen, especially if you have poor internet connectivity.
We always recommend keeping your app up to date. You can check for any updates needed by visiting the app store or click here for a step by step guide.