Given the shitty Chinese hydraulics in overpriced leather executive chairs (and unwilling thus far to shell out the dough for a Herman Miller) and because I can pick up on lessons rather quickly, I purchased the "Service Protection Plan" for one of the office chairs I got at that demonic amalgamation, Office[Depot/Max] thinking I was outsmarting the general population. I was wrong.
When the chair finally broke (not only did the hydraulics fail, the post eventually snapped in half), I called it in and sent them pictures of the damage and they responded by sending me an in-store gift card for the sale price I had originally paid for the chair - so, not a replacement. And everything else that store sells is marked up 400% more than Amazon, for example.
I really don't know why Office[Depot/Max] doesn't sell these: