I wish the people that worked at my local Best Buy were more knowledgeable. The guy that helped me when I was there didn't know what platforms Bayonetta 2 and Tales of Xillia 2 were for which should have been a sign, and then he told me GCU did not apply to the Smash bundle. Didn't find out he was wrong until later.
Can you change a preorder over the phone? I don't know when I'll even be able to drive back out there due to sharing my car at the moment, and even then it's a 30 minute drive just to get out there. Just to change a preorder.
Then again, all things considered, I might be better off trusting the website that says the bundle is not available at that store. It would suck to preorder and not get one because preorders were supposed to be closed.