https://www.amazon.com/kindle-dbs/hz/subscribe/ku?ref_=sv_kstore_3&_encoding=UTF8&shoppingPortalE nabled=true

What I need to know is do they take the Whole $30 at once or break it down Monthly??
^ Hot damn!

I'm joining again - right now! [Seriously.]
Do they charge all at once or monthly?
That must be for new, not current members?
Just took the 12 month offer. That saves $40 for me over 12 months, good deal. I love KU, it's almost a no brainer for me. I love that Amazon offers the deals to existing subscribers.
Deskisamess hummm what 12 month offer.... link please!
You can cancel then rejoin
From the link you posted, I clicked Extend your membership.
I found where to get the sale

Link

Got the 24 month membership. Thanks, Barbara. I've been waiting for this sale.
So for 12 months one saves $40. (20% off.)
But for 6 months one saves $30. (50% off.) [With the link supplied by Barbara1955]