Crypto Scam Report

We were introduced by one lady from facebook to Arthur (Account Mgr) who claims that he works in Broker name BITSGRADE. Initially he introduced the Companys Crypto plans as below: Invest 100$ - Get Profit 1000$ Invest 200$ - Get Profit 2000$ and so on till Invest 1000$ - Get Profit 10k$ I went for 400$ and he claimed we will receive 1200$ for 7 days. Every day my balance kept on accumulating in Company portal named as above BITSGRADE. Finally when my withdrawal was due in last 7th day the Scammer Arthur told that they cannot process the withdrawal through PAYPAL as they originally claimed and they told that they need to link their Company Antiminer machine to our Blockchain Account to process withdrawal. He took my Blockchain login credentials and went into my account and he Imported Companys wallet address into my account and he made in non-spendable. He didnt provide me any private keys to process withdrawal. Finally he told I cannot use the amount as i havent used Blockchain account even once. Then he went offline and could not able to get in touch with him. This way i lost my 400$ of amount. Hence help me in recovering my amount to the below mentioned account: 3Kh1VuKz7nx7NNmgh69zQRspqXNvPxDAig