Here's how to obtain Extra 2 months Free Instant Ink in addition to the free months which came with your HP Instant Ink printer.
HP currently offers a free month to anyone who joins their instant ink program via this referral link (USE THIS CODE FIRST!)
Simply use the code rLLHM (case-sensitive)
The second extra month free code is simply FREEINK
These step instructions will be printed and posted upon payment.
The codes are only valid on new registrations to the Instant Ink Service.