Caller: I don’t know

Got a call from this number, it was weird because I tried to answer it on the first ring but it went to voicemail and left a message anyway. Message it was was waterman’s and gave me a reference number. Google says it’s a debt collection place. I quoted the reference number and they were looking for someone I have never heard of. The speaker was pretty informal and it ssid not sound like a call centre - just something weird about it.

I called back the number (03) 9448 8313 and reached vm that did not mention the company name