I signed up for the Instant Ink subscription but canceled before my first set was shipped. I just got an email saying my Instant Ink cartridges were shipped. How would I go about returning them to HP if they are UNUSED? Would they be able to track my cartridges? I don't want to be charged per page for next month when I am no longer using the subscription.
Also, on the FAQ, it says "If there are any charges for additional printing, your credit card will be charged." Will I still be charged for per page if I never set up my Instant Ink subscription?