Again, they didn't "mess up" the descriptions, at some point they managed to make a deal to get in copies for their PC versions but only to go with the Inquisitor's Edition, this was confirmed via their distribution in email prior to release. I don't know how many times we need to say this, and if Ireland or other parts of the UK or Europe were advertising this too, then the same stands.
The method of distribution was likely to be in the form of extra codes only (printed specifically for these regions who didn't get Deluxe style cases for PC), with the Standard game case (instead of Deluxe labelled case). This didn't happen though, instead, at least in Australia, all you got was a the standard pre-order code (Weapons and Armored Mount), along with the game's serial key inside the case and a Registration Code inside the steelbook.
The agents, or rather "advisors" on EA support will personally confirm that your account is entitled to those things if you have the DAI Inquisitor's Edition Registration Code applied to it, and I have a transcript to prove this fact at least in my case. The price drop did remain the same, but some retailers obviously managed to get it arranged in some way to get us the extra content (or were meant to according to what was passed along in communication).
Again, I can't speak for what happened in the UK or Europe (or even the USA), but over here in Australia the staff of EBGames (our version of Gamestop simply renamed) were rifling through Inquisitor's Editions supposedly "looking for damaged parts", and as a result things have gone missing, boxed products were unsealed and so on. Some are lacking parts of the physical content, some the steebook, some are missing code sheets...it's just a mess of nonsense.
At the end of the day, the product was advertised to give these contents and not everyone has had it delivered as expected, and EA is simply (in most cases at least) checking the eligibility of our accounts and pressing the buttons to make it go through on our end if it shows we're meant to have it but don't.
They're not giving out freebies, they doing what is "right" because distribution or the retailers themselves stuffed up in several ways or have stinking thieves in their midst taking what isn't theirs (EBGames are notorious for this down here, and I hear Gamestop in the northern parts of the world have this problem too).
Generating these codes is at zero cost to them, and it's fixing the problem for people. Why there are others who continue to question this or act like we're cheating the system is utterly beyond me. The advisors ask a good number of questions and for proof of purchase, then check the accounts for proper flagging and eligibility, it's impossible for us to lie about what we're entitled to when the system tells them for us.
That said, to answer your question specifically Kargsure, from one Aussie to another: You would, for PC, get four codes. Two printed on a "pre-order" sheet, one on the "manual" inside the game case (the serial game key) and a DAI Inquisitor's Edition Registration Code inside the steelbook cover. At least in my experience, this is all EBGames Australia has been giving out to PC users, with the rest of the boxed content and a Standard branded game case instead of one with Deluxe Edition on the label. But, like me, they advertised that you would get all of the Delxue content so make sure you go through EA support to get it if need be.