Welcome to the Community! I hope you don't mind me replying in English.
How much was the charged value? If you recently changed your payment method, it's very likely that there will be a charge just to test and verify your new card, but soon it will be refunded to you, it may take some days for the money to come back.
Could you activate Premium successfully by now?
Let me know how it goes :)
BruneliciaRock Star 9
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