Sorry that happened to you Ectocooler. That's really crappy.
Walmart.com has been good to me lately, but a few Christmas' ago they really messed up. They said they had armorized Shredder and the Foot elite in stock in a gift set with Foot gunner. They actually didn't have armorized Shredder or the Foot elite, and for my Fighting Gear turtles order they sent me an extra Raph instead of Leo.