It's more than possible that Microsoft pulled the trigger on these Lumia 635 pre-orders a little too early. As we previously reported, the Microsoft Store site did show on Monday that customers could pay $99 for the AT&T version without a contract, along with $129 for the T-Mobile version, again without a contract. The listings did not offer a shipment date for the Lumia 635 before they were removed.
We have contacted Microsoft to see if they can comment about this situation and will update this post if and when we hear back. There's no word if people who jumped in and pre-ordered the Lumia 635 from the site on Monday will have their money refunded or if Microsoft will simply wait to ship them their phones when they are ready to be released.