who ever called they are scammers

Caller: (03) 8657 4566

Left automated message to say I was going to be debited for a $299 gift card. Does not say what company is calling. I have not ordered any gift cards. Now blocked.

Caller: Scammers

Robot left vm says I purchased gift card on my ebay account for $299. I don't have an ebay account

didn't answer - message was recorded voice. Something about 'account', but because the message starts to soon there's no way to know what it was about.
They ask to to call back 'displayed number' - how come they don't know what number is calling you?
Scammers.

left message saying $199 will be debited from my account good luck trying that

Scam fraud telling me I made a $200 order on ebay