Obviously this is a scam, no one can make money instantly just one send and then you get double your bitcoin, the scammers are usually behind the mask of famous names such as - Elon Musk, CZ, Vitalik and many more. So this kind of giveaway is clearly a scam has exposed many cases on this forum.
To all telling me I'm a fool, thanks for nothing.
To those few who expressed sympathy, thank you very much.
That's enough, this is a lesson for you not to send any assets on behalf of other entities with the lure of double returns.
Now not going to say you're stupid, this might be your first mistake.