I can understand your frustration as my one case of SPx that I opened was like that too and my one case of Upper Deck Series 2... no case cards in either one of them and it really ticked me off. I DID email Upper Deck after the SPx case and they were nice enough to send me a free box of SPx and a Flashback Fabrics card that I should have got out of a case. It was nice, but it still ****ed...
I know what you are going through... you have the stuff there and it wasn't selling and you thought, well, why not open it up and get some good stuff and move that stuff and get some money back out of it and WHAMMO, you get slapped in the face for just trying to recoup some of your money you invested...
I have had some regress like that too and have honestly thought about giving up on opening up products this year too, because its definitely a feast or famine year with Upper Deck being the only show in town... and its just really bad for the hobby...
Rod