Just upgraded to Premium, then got an email about upgrading?

I just got an email about locking in prices for paid plans. I recently upgraded to Premium and the deal was $139 every two years. Is this no longer the case? I'm confused.

Sorry about that. That email was actually only intended for free users. You will keep your existing low prices as long as you are a subscriber. All existing subscriptions are grandfathered. The new prices only apply to new subscriptions.