They didnt pay the invoice of USD 4200

Dear All Reader,I would like to tell everyone that multibank is scam broker, they offered a partnership and had to pay me an amount of USD 4200, which they didn't pay and neither is responding to any email. The communication with the manager is also attached herein, he clearly mentioned that company is doing wrong and I am on right, they are not responding to the emails and have blocked the account so I cannot take any screenshot of the earnings.