I had a Google Now card pop up showing my phone order was shipped, the day I ordered it (10/4) - didn't mean it's actually shipped.
Having your card charged doesn't mean it's actually shipped.
When you get your tracking number in an email, it doesn't mean it's actually shipped (only means a shipping label was generated).
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When you have your tracking number and looking it up shows that the parcel has actually been tendered to the carrier.... THAT is when it's been shipped.