Had a few calls from them. Same story, can't call back

Same here, every day and every night even 2 am, am on the Do Not Call Register but this in no way stops them. Can't Telstra block this number.

I just received another one of these, it was about the 10th missed call.
Some bloke was asking me whether I had insulation in my house (related to the $1600 grant)
i said i had some and he basically said thanks and goodbye

Obviously these people are using a dialler that rings about 10 numbers at once.  fairly common practice but annoying nevertheless.

ditto. I gave my number to carsales.com 2 days ago. Dunno if there is any connection.

Also check out below link as same comments as in here. http://phoneowner.info/Number.aspx/(07) 5634 9400Located in Brisbane Australia as well guys being their is no indicator for location. Sounds like I am having the same problem as everyone else on here. And As indicated by Mike Fitz in the above link webpage, it is a Thursday. This has been the 3rd call today and when i answer it cuts out. If they are scammers for the insulation rebate, have they been checked out? In order to claim a form would need to be lodged and a clients signature. Wheres one of those reputable news reporting teams when you need them- Today Tonight, A Current Affair- The Chasers!!

had a call from this number at 3.24 October 21 2009.  Tried to call back but line busy

it is from a telemarketer