You could have posted in the Simcity thread you little stuff
Just pre-order the physical copy from Amazon.com. You don't need any money in your card either, it can be just a card that has $0.46 in it like mine does, because Amazon won't charge for physical game copy preorders til it ships (which is March). Then you will get emailed by Amazon within a few hours (at least for me, but this was all last night might be quicker for you idk) with your beta key. Then cancel your pre-order. Ta-da.