Once logged into your account, you can request a return online for items that have been delivered. Go under Your Account → Ask for Return → Under the or...

For any product being returned to us, it must be approved by our support team, since specific steps need to be followed. Please contact us at 1-866-979-746...

Please note that we unfortunately do not accept the return of empty cartridges at this time, but we do suggest recycling your empty cartridges locally.  ...