Called but didn't leave a message. I don't recognise this 08 number ? Besides, I'm in Alice Springs & the number calling is in Adelaide. IDK anyone in S.A

If they call you on your landline, next time they call you, speak to them, then ask them to hang on for a minute. Then put the receiver down on a table or bench and leave it there. Some of these idiots will wait 30 minutes fo you to pick up again.lol. Waste their time. Or invest in a whistle and blow it loudly into the phone. I guarantee they won’t call back.
If it’s on a mobile block them. If it’s an iPhone look in recent calls, then click on the i, then scroll down to Block This Caller. If it’s an android look up how to block a caller on google.

keeps calling 30 times a day no answer, no messages just endless spamming