Money plegded on FNB account

My name is Nkosikhona Mchunu I had money of R 5039.79 amount on my account that was received from big deal which is the online store, my money has been frozen by the bank and it is nolonger appearing on the available balance, when I went to the bank I was told by the bank at the branch that the money has been plagded as it was reported by someone to be a suspected *****. My ID number is *** and my phone number is ***.