Because you are a "new seller" you funds could be on hold for up to 30 days.
If tracking and feedback show it's delivered that MIGHT decrease the hold period.
https://www.ebay.com.au/help/selling/getting-paid/getting-paid-items-youve-sold/payments-hold?id=481...
Note. I'm assuming you have verified both your bank account AND your ID for Managed Payments.
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