tangor - 2:39 am on Aug 12, 2011 (gmt 0)

Bah! Why make it difficult? Inquiry/Enquiry... both mean: Questions? (works in both versions of English)

Sounds like a tempest in a teapot... though I will say that if I find one or the other on the page that tells me where the offer is being made... and at that point I decide whether I hit the back button or not. (Something to think about) Both are correct, both are accepted in UK/US (alphabetical list) and no harm done (except for comment above). Despite ivory towers on either side of the Atlantic the word reads correct in either spelling (particularly since both sides of the Atlantic have taken great liberties in their educational institutions to the lowest common denominator where any kind of spelling is allowed). That said, avoid, if possible, any words with alternate spelling ala UK/US... and in most instances there's ALWAYS a better word to use!