Just tried after your seeing your comment. It throws out a useless generic error "We are experiencing problems with our site...". I think it has something to do with Cookie/ViewState validation to prevent automated attacks.
Fix: Clicked on the "Compatibility View" icon at the top on the browser and the order went through fine.
Good call. For some reason I didn't get the compatibility view button for this site. I noticed I don't get it for any sites. After some digging, it appears something has turned it off on this box. I've turned it back on and it works in compat view.
Sir, i tried to bring your attention on the fact that pizza is not the best food to eat. All i did I just used the same words you used to describe MSFT.
MSFT has 94,000 employees and ~1 billion devices running windows around the globe. You can buy brand new computer which runs windows 7 or 8 for ~250$.
And i don't know why guy like you, who finds pizza ordering process so sophisticated that made post on ycombinator about it, thinks that he has rights to insult 94000 people, saying that they don't care about their customers. Some of this people i have an honor to call colleges and friends. I think you owe apologies, sir.
Sir here is a Microsoft gold partner who puts nearly £1m a year in business their way as well. I'm not a reddit whinger and Microsoft hate monger.
They treat us like criminals by throwing us through audits, never fix a defect we raise and stop us ordering pizza through trivial bugs which may or may not also affect our 2mloc financial platform.
So, no apologies due. And if you work for MSFT, you're adding to the problem. 94000 people doesn't mean it isn't a ship of fools.
And for reference, its not going to be pizza that kills me - I have a degenerative neurological condition (neurofibromatosis) that will get me first.
I raised this with them 4 months ago: both Pizza Hut and Microsoft and neither give a shit about their customers.