Received this email also, not clear on few points though so if Mat Heyward could provide some answers it would be good - sorry to hijack thread;
What happens if you already have a PS CC sub plan in place?
Will the redeemable code allow us to cancel our current paid for annual sub without the penalty of 50% of the outstanding time on the plan?
If you upload images to Fotolia to be mirrored in AS, not through Adobe Stock, does that still qualify?