18 July 2021 Sunday. 22:02:43 UTC
These info you can find on their page:
"We believe that Blockchain and ETH coin will make the world more fair. To speed up the process of cryptocurrency mass adoption, We decided to run 50.000 ETH giveaway. To participate you just need to send from 1 ETH to 200 ETH to the contribution address and we will immediately send you back 2 ETH to 400 ETH (x2 back) to the address you sent it from."