Left a voice message on my mobile, "$99.99 will be debited from your account, press 1 to claim refund, or call back"

Rang a couple of days later from a landline... just a busy tone

Spam message saying $9.99 would br charged to my account. to claim refund press 1

This was a recorded call saying they were deducting $299 from my account for my purchase and if I had an issue to press 1 etc
I hung up and then later called the number and someone answered: John from eBay??

SCAM ..don’t answer!

Caller: eBay

Some one has bought $250 in iTunes cards. please talk to our helpdesk.

Beats me but not anyone we know polite indian bloke got hung up on.

Caller: Scammers

Don't know anyone in Darwin so let it go to (voice2text) voicemail. Message "Hundred and $99.99 and the same will be debited from your account automatically. If you want to cancel this then press one. Quote your claim for..."
I'm guessing they were cut off due to the time limit.
Definite scam

When I returned call, man claimed to be from e-bay call centre. I wanted to know how they got my number. Text msg originally stated that $9.99 will be debited from my account automatically, if I want to cancel this then press one or two claim for refunding. This must be a hoax. I told the man I will be reporting this number.