Item not shipped but delivery is tomorrow and the featured offer

Can someone help me understand what this means? So I ordered something and the seller claims to have shipped the item, but the tracking has not updated in a couple days. I've

Shipped but no more available : r/Aliexpress

order not shipped but arriving today

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Arriving today, but it hasn't shipped yet 😂 : r/kindlescribe

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Item not shipped but delivery is tomorrow and the featured offer was removed : r/prime