I called back number (07) 3513 7978 rang 5 times then goes to busy tone.

I have been called from the above number for the past few days. Caller claims to be from Careers Australia. I don't know where these people got my (mobile) number from; it and my landline are on the Do Not Call Register (ain't that a joke!). I am well past the age where I need career advice; I actually rang CA and the person I spoke to said "she would take my number off their call list". Hasn't happened. My advice to anyone who is called by these trolls? Tell them to p*ss off, and block the number.

Suspected spammer. I didn't speak to whoever called as my call blocking app diverted to voice mail where no message left. Fact this happened means someone has reported calls from this number as spam somewhere. Be wise, don't answer this number. They now on my black list.