No money back from their investment

I deposited my money 2 months for 20 days interest, when it matured I did not get even a cent out of R1000 that I deposited as it was initially promised. I haven't got any response from them to date. The maturity date was about 4 weeks ago, but to date no answer not even an acknowledgement of email or fax. Can i just get my money back interest they can keep. Their investment is not professional the least they can do is to give people feedback not ignorance. i tried to login in to the account this morning to check if there are any developments but all of a sudden the account is suspended!!!<br>