Scammed by INVCENTER

I wanted to invest on bitcoin and registered on the Adv online. i received a call from this company and was told that i could start trade with R3 500.00. I deposited R 2995.00. Time went by nothing was happening on the acc. I sent them an email and a man called himself Johnson Tayler called me. He run through the screen with me but more interested in how much i had in my acc. I started doubting this and asked him to prove that the business was legit by sending some money back. He sent me 100 dollars via ewallet and demanded that i deposit R15 000.00. When i turned him down, he became furious and did not help me further. They still keeping me waiting for my money.