Sadly, I made the mistake of not getting the terms to my purchase in writing. I received several phone calls over the course of a year, telling me I still had cartridges I needed to purchase according to my original agreement of 12. I was able at one point to get them to split the extra "cartridge deal" to cover a separate printer so I could finalize because I obviously didn't need 12 for the same printer. I was told that this would be the final call & the final order. 6 months later, I received another phone call telling me I needed to purchase a total of 12 more cartridges for the new printer because my original agreement was for 24. Uh - no.