YMMY (Dec 23-30): Spend $25+ in eBooks, Get $6 ebook store credit

This promotion is back again at Amazon. It is YMMV, and you have to activate it first in your own Amazon account, which I believe happens automatically at the Promotional Page OR if you click on any of the in-page banners at Amazon (you may see them while you are in the ebook pages ~ that’s how I found it while writing the post about the Nikon D3500 dummies offer)…

Just like before, the offer works retroactively (once activated) for the period between December 23 at 00:01am and December 30 at 11:59pm. If your total ebook purchases are $25 or higher, within four days of reaching the milestone, a $6 promotional ebook store credit will be applied automatically to your Amazon account.

The $6 promotional ebook credit must needs be used within 21 days of it being credited to your account, otherwise it evaporates into the 13th dimension. More details at the Promotional Page

PS: given the date range, it is possible they have another promotion to cover the New Year but this is PURE speculation on my part…