Caller: 243850045356

The location says Gosford, NSW. But the number is too long. I made the mistake of calling it the first time. They said it was a contact agency and there was a family member trying to get hold of me. They said they'd put me on hold while they connected me. Yah, 5-minutes later I was still on hold and figured out I had been had.
It's an overseas number and part of the Wangiri scam, where they call wanting you to call back. When you do, they will try to keep you on the phone for as long as possible because you are being charged premium rate. The number changes a lot. Basically, if you get a call from an unexpected overseas number, don't call back. They can call a lot if they get you to call back just once. Block the numbers on your phone.