Hi Yujun,
You can use the block explorer AlgoExplorer (https://algoexplorer.io/) to relay the transaction details as necessary.
As we are are a public, decentralized blockchain there is nothing we can do to recoup your funds.
We will continue to warn our community about fraudulent websites and scams. Please only follow our official channels as we do not engage in send to receive giveaways or airdrops.
Regards,
Ronan
Algorand Foundation