Purchased non-OEM HP color ink cartridge from ClickInks.com in Sept of 2014. Didn't open it immediately until after 30-day later. When put it on my HP printer, the cartridge didn't work at all. Called them many times and finally reached to their rep. They agreed to give me store-credit if I return it.
Mailed it back in Nov of 2014. Never heard back from them any more. Called the number, most time there was no pick-up. Even if I can reach a live person, I was told to wait because they are so busy.
Now I just give up and forget the store-credit thing, and move forward.