Telemarketing the "Real" in RealEstate seminars

I called back number 0439 575 594 rang 2 times then goes to busy tone.

Called and left no voice message.
I called back and was advised number disconnected?

This number once again called me without saying anything then when called back says number disconnected. Getting so annoying with all these 0439 numbers calling everyday.

I called back number 0439 575 594 rang 3 times then goes to busy tone.