Looks like Amazon is no longer giving 2 Day Prime on subscribe and save items.
From Amazons website:
Why didn't I qualify for Prime shipping?
The Subscribe & Save program offers participants great benefits like a 15% discount, convenience of recurring deliveries and a no-commitment cancellation policy with free standard shipping. If you need an item faster, Prime Two-Day and One-Day shipping are available for eligible items, but the 15% Subscribe & Save discount will not apply.
Re: Very Sneaky Amazon
my items still arrived in two days.
But yeah, poo on them.
Not to mention they took over diapers.com and now things ship for free but take 2 days to arrive (used to be 1), they did away with the referral program. (Every time one of my referrals would order I would get a credit towards the diapers I buy.) They also did away with the x% carrying over into your next order....and I hear the customer service is not what it once was.
By yay for amazon they just have to compete with Walmart now.
And because they took over Diapers.com you now have to pay sales tax. Bummer