I placed an order yesterday for an item that was in stock and prime eligible (I'm a prime member) and when I got through with the transaction it gave me an estimated delivery of 12/12

I did the chat now and got it "upgraded" to 2 day which isn't really an upgrade since I pay for that service with my prime membership. If Prime eligible items aren't going to be shipped in 2 days, why the heck am I paying for a membership
I'd contact them, they may be able to upgrade your shipping.