Where can you spend pokemiles in Pokemon y?

In Pokémon Y, you can spend PokéMiles at the PokéMileage Club in the Pokémon Center located in LumiOSe City. Here, you can exchange your PokéMiles for various items, including TMs, evolutionary items, and special items like rare candies. Additionally, you can also use PokéMiles to purchase items at the Battle Maison, such as battle points and exclusive items.