Double charge

Hello, I got a double charge on my Curve for an online purchase on Amazon, one transaction was charged on my selected card 8 days ago and today I got a second charge on my selected card for another transaction.
I already called Amazon and they told me that they didn’t make any second charge, so I guess I’ve been so lucky to be one of those whe gets double charges from Curve.
How can I solve this problem?
Thank you.

Had the same today

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