came up on my phone as suspected spam

I called back number 0413 368 751 rang once then goes to busy tone.

I found today that this number belongs to Lendi Home Loans. I had many missed calls from this number and no messages left. I had no idea who it might have been. In the weeks before, I had been on their website asking for someone to call me at a time suitable to me and left them a list of suitable times. They failed to call me during those times, so I had dismissed them. Now they have continued to try to contact me at times when I have been unable to answer. Finally got them today.