Thanks for reaching out. I hope you don't mind me replying in English, since it the official language in the Community. If you got this card in a store/fuel station, you need to make sure it was activated at the counter. Also, just to be sure, can you confirm you're trying to redeem it in this link?
If you keep getting an error, I'd recommend trying this using another browser or an incognito window. You can learn more about redeeming gift cards here.
Hope this helps and let me know if you have any questions!
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