Originally Posted by
jmmi
A few months ago I called CS about a waitlisted upgrade and asked if upgrading with points or vouchers makes a difference in terms of priority or time to clearing. The answer was a clear no. (The usual grain of salt: the CS agent may have been ignorant, policies may have changed, etc.)
I really don't think it does as basically they're just waitlisted to the fare class F. I doubt it is visible which instrument the passenger has used to upgrade.