Bug when I buy cards in the store
I bought a card in the store and it wasn't added to my account.
It's the third time it happens to me.
1
vote

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LarterStyles commented
Individual cards are never sold in the store, only card styles (i.e. cosmetics). You need to first own the card (either by opening in a booster pack, or by crafting with a wildcard) in order to use the card style.
Note: there is a red warning displayed at the bottom of the screen when you attempt to buy a card style for a card that you don't own.