A:AnswerI had the same issue. Each time it would fail to put it in the cart. Essentially, I just refreshed every couple minutes until the pre-order logo came up and about the third time I got one. It seems that the pre-order option comes back when someone cancels theirs, but it's first come first serve, so you have to be fast getting through checkout.
A:AnswerAccording to the playstation store its sold out everywhere. I suggest you try again in a couple of weeks or a couple of days before; some people tend to cancel their preorder
A:AnswerIf you want to pre-order the Spider-Man PS4 bundle you can either do it online at bestbuy.com or go into Bestbuy and have them preorder it for you at the customer service desk.