Originally Posted by vinnmann
Just write the CC and say "on I paid $x.xx for the ticket, requested a refund per these terms (attach DL risk-free cancellation rules), and was not refunded the full amount. Please adjust my account."
My experience is that this won't work. The credit card company will want "proof" of the bad charge and they would have no idea when you requested such refund. They don't just automatically take the customers viewpoint.