Originally Posted by
hipporo
1. Is a free upgraded C+ ticket different from a "regular" C+ ticket?
Yes. Upgrades don't change the value of your ticket coupon.
Originally Posted by
hipporo
2. Do I need to pay $575/leg to upgrade my seat to PS? Meaning, the free upgrade to C+ does not benefit me to upgrade the seat to PM?
Correct, it does not. Normally an upgrade isn't actually based on the price of either cabin directly, but you may be seeing a special case or you may be looking at "change flights". Especially if the latter, then yes you need to pay the difference from Main since that's what you purchased, and the free upgrade has no bearing on that.