Could be a drop shipper* with multiple accounts, that didn't have them in stock and couldn't get any quickly, so fobbed you off with shipment tracking delays.
*The worst kind of seller, often copying vast inventories of stuff from other website over & over, till ePay gets saturated with items all the same (insert thumbs down emoji we don't have here!).
There are also a lot of legitimate accounts getting hacked all the time, as soon as the listings get taken down they appear again under another hacked account, the scammers must make enough to keep doing this.
David