Maybe also because of the pandemic situation, the scamers who keep silent at home do their actions by making the same fake giveaway before, even though there is no change at all except for the domain.
Basically they know that they will get caught with their fake website and due to this reason they usually purchase multiple similar looking domains at a time. Just like that this guys may have used another frontend design with another domain and now they have shifted to current one.
Seems they have been asking to send BTC from 0.05 to 5 BTC to their address. What a ridiculous way to verify your address by sending BTC. Any true giveaway won't ask for send money to get a reward. Double your money within sec an unrealistic expectation.
They are offering like bitcoin doubler and trying to attract investors through this. Just blended the idea of giveaway and doubler together. Huh...Undoubtedly its a complete garbage and everyone should keep proper distance from this.