Two comments, once you 1D X there's no going back, so watch your credit cards. I just paid mine off but my photo budget is blown for the year. No regrets whatsoever, though, and if you need 12FPS and/or a bulletproof camera, there is no substitute.Hello Mack... yes that 1DX is a game changer I really like the 5D Mark III but I love the 1 DX in my hands @ B&H photo and I didn't want to let it go!!! What a beast!!!
Also, Canon is known to cancel orders paid with non-US payments, so that may be what happened, if you're outside of the US or using a foreign payment source. If not, just call them, they have great customer service in my experience.