I called back number 0411 717 382 rang 3 times then goes to busy tone.

Lifestyle Direct, returned call but number disconnected straight away after call.

when I call back it says it's a disconnected optus number

Claimed to be from Lifestyle Direct and then asked mortgage related questions "just doing a survey". Suspect they were building a profile on me rather than a survey. He claimed to need 30 secs but 2:30 mins later I'd had enough of answering some and avoiding other questions. Pointless but wary. Will now block.