It's from lode.com.au, a site affiliated with studentVIP.com.au. Not malicious (as far as I know) but definitely annoying.

http://lode.com.au
They try to sell you internships (you pay for a non-paid internship)

This number just called me and left a message saying something like "this is for gast career consulting" and knew my full name. Odd that they're using different names

I called back number (03) 9111 1272 rang once then goes to busy tone.

I called back number (03) 9111 1272 spoke to a guy who said company name is Lode.

I called back number (03) 9111 1272 spoke to a woman who said company name is Lode.

I called back number (03) 9111 1272 reached IVR for a company called Lode.

I called back number (03) 9111 1272 was put on hold music directly but no one answered the call only mentioned the name of a company called load.