They cancelled mine too..
Just to let everyone know I ordered this set from target, on June 20th and they canceled my order on July 28!!!! Not happy I had the chance to order them since then and didn't . When I called target to complain all they said was sorry!!!! And today they had them up for a short time on sale I'm so upset my daughter was looking for them in the mail,,, to not let me know is bull. They said its a vendor problem.
I ordered mine the 29th (Amazon), and I just got the conformation saying that it has shipped. So don't give up!