Originally Posted by
tr3k
UA operated. I paid for an upgrade to C, so this was actually ticketed as such (and showing as C in the SK app, it does see this booking). Original booking class was Y, in which case it would have been 500 miles - so still does not compute.
I have a theory, it's kinda out there but bear with me: The system might have calculated the miles based on the original booking class before the upgrade, which would result in 500 miles, but when checking the minimum amount it might have checked your upgraded booking class, resulting in you getting the minimum miles for Business C.