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is there anywhere that isn't a scam where I can sell 3 unused Battle.Net gift cards? : r/Blizzard

I don't have money on my card so I went to Gamestop to buy a 20 dollar balance card to reactivate my WOW sub. Nowhere does it say on the card that

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Battle.net

Just got this when I logged into Battle.net. Haven't touched Hearthstone since March. Is it worth getting back into? : r/hearthstone

Blizzard

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