I read similar things, and honestly I had a lot of issues with my A50s (pre dock model). Their customer service was decent, and so was the headset when it was working. This replacement pair is going out though...
Wish I could have bought your order from you before you canceled it :[
The Ultimate Edition came out at launch, and includes the items that you mentioned.
The Complete Edition came out late last year, and includes everything you mentioned (Except Halo Wars 1), but also adds the full expansion that revolves around the Flood, which was sold separately, "Awakening...