You are a moron...
When they very first announced Pre-Orders and Early access it said quite clearly that the earlier you redeem your code the earlier you would get into the early access program. They never hid that, put it in small font, or used any other duplicity to trick you into pre-ordering.
Stop whining, if you are so upset about this imagined injustice then cancel your pre-order and go back to WoW. Honestly no matter how they handled it there would have been people like you complaining like crazy. Had they just let every single person in on the 13th, the servers would have been queued like crazy, laggy, etc... and you would have made a post about how BioWare lied to you about being able to play.
Also, early access wasn't even supposed to start until the 15th, assuming you get in tomorrow that means you had a 3 day way, so if they hadn't added those two extra days you wouldn't even be getting in until the 18th; instead they bumped it two days so now you are going to get in on the 16th (One day after their advertised starting point for EA)
Suck it up and be happy with what you get or leave. Or at least just post your agreement in one of the 2,000 other threads just like this one made by whiney little morons just like you instead of adding another one to the list and covering up all of the actually useful and intellectual posts the mature members of the community are making.
(Decided to unleash all my annoyance at all these stupid posts on you in one place)
Hope a mod closes this thread and an admin bans your MAC Address from all BioWare services.