You know how sometimes you get these offers through credit cards?
And they come with a "free roundtrip" to wherever...
well, let's say you get one of these ticket vouchers and book your tickets...
usually what class of service are they for? (for example, J, F, etc)
And are they typically able to be upgraded?
Are these types of tickets frowned upon by reservations agents?
Just wondering what people of the industry think about them and their pros/cons.
thanks for your thoughts, mirrodie