As well you should be, and I think a furious letter to the publisher (is that Tor again?) is almost a must (a refund is the least they can do).

With a novel so thick, it's virtually impossible to be sure so early of what else might be missing, and for the finale of a series that's so demanding it's most unpleasant. Unless an accurate list of all that's missing surfaces down the line, it virtually force you to re read the whole book just in case. Erikson too must be very pissed about this.