I called back number (02) 8880 0427 it says the number I have dialed is not in service anymore.

toroption trades company got number from internet and wont stop calling. have told them to place on do not call list about 4 or 5 times but they still keep calling

An aggressive salesman from company Toroptions. Reported they got our number "online/internet" though I highly doubt that as I value my privacy highly. Also on the do not call list. Company is listed on http://scambroker.com/toroption/ and Asic advices not to deal with them.
Wouldn't provide me with any further details.

The number is not in service