Received this offer via email today, I'd just let my subscription lapse as I wanted to change my Adobe ID, so it was perfect timing. Not often I get to save $240! So pretty happy. Not sure how wide spread this offer is or if it will last long, so get in quick I reckon.
Normally $49.99 per month:
https://creative.adobe.com/plans?store_code=au
Read all about Adobe Creative Cloud here:
http://www.adobe.com/au/creativecloud.html
Was that because you were a prior purchaser of CS? (see: https://creative.adobe.com/plans?store_code=au)