I really wish it was clear if she spoke to her boyfriend at 8:30am on the morning of the 15th on the phone. I keep reading conflicting reports.
If we go off the media reports, poor Phoebe had a flurry of activity right on 8:30am -
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"Police said her housemates were the last to see her when they said they dropped her outside Bundaberg Regional Airport at 8.30am."
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”She didn’t check in for her flight to visit her boyfriend who she spoke to on the phone at 8.30am,”
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"However, the teen did not board her 8:30am flight and there has been no sign of her, or her luggage, since"
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I think the boyfriend's account of speaking to her at 8:30am is true, I imagine he was the one who reported her missing.
We now know that Phoebe's flight wasn't scheduled to depart Bundaberg Airport until 10:10am. So she probably wouldn't have wanted to arrive any later than 9:30am.
It's unclear how far she made it. If her housemates actually claimed that they dropped her at the airport as stated above, they were lying. There's no CCTV of that happening.
There were reports of Phoebe arguing with another occupant of the car (possibly unsubstantiated)
There were reports that she was actually dropped a few streets away from the airport
There were also reports that her phone pinged near the airport.
Who knows which of those reports are true, if any?