The items sold at Delibird Presents are split up into four sections: Battle items, General goods, Poké Balls, and Rotom Phone cases. Each type of Rotom Phone case can only be bought once.
All stores in a city are part of the same branch, and all stores in a branch sell the same items. The stock of Battle items and Rotom Phone cases change from branch to branch, but the General goods and Poké Balls are the same at every store.