It's really a very long story but it turns out that they hadn't scammed me but that Amazon blocked my money because an alarm was triggered (I think it's because I tried to spend more than 1000 dollars with gift cards)
and they even blocked gift cards that were purchased on Amazon BUT the important thing is that I have my money back (and yes, I already bought the rx 7900 xtx and if there are no problems it will arrive tomorrow)