Both my husband & I received a call from (08) 9550 1501 around 2.40pm Mon 4th May but caller didn't leave any message on either of our mobiles. We assume we are known to the caller because he/she/it clearly has both our numbers & rang each of our numbers within a couple of minutes. Here's the thing, if any number on our screen is not recognised by us we don't answer these calls just send it to message bank. I did some research & have found this number range belongs to the Mandurah, West Australia area. Anyway , we have assumed it must be a scam of some sort or one of those begging groups who think we are dim witted enough to donate over the phone... yeh right...