Originally Posted by
Kacee
I fail to see how misleading OP into believing he had confirmed seats on the return is not "wrong." It is in fact wrong by any reasonable definition.
OP, I would definitely write to United customer care and request they provide compensation, as the failure to ticket you, or to advise you that you were not ticketed, was indeed an error on UA's part.
As noted, the first UA email makes it plain in bolded text that it is not a ticket receipt and that one must wait for the receipt to be assured of travel.