Caller: Goldstar RV

Wanted to send me literature about there new caravans.

I called back the number (08) 7078 4403 and reached vm that did not mention the company name

I'd already blocked them as they were trying to sell something, however now they ring back and leave nuisance messages like someone signing in a foreign language.

Yes. It was marketing for Goldstar Caravans. Not offensive. BTW they have a nice caravan.

Another scam caller

Nuisance call, I'd say, as when I did not answer and call went to my voice mail, they did not leave a message.

Generic voice message when called back
I'd say scam

I answered and said hello. they just hung up?

A missed call. Didn't call back. Don't know who it is. I personally don't know anyone in 08 area.