By Lindsay Rogers “We are experiencing higher-than-normal call volumes.” If you’ve attempted to contact an airline customer service center any time in the past two years, you’re surely familiar with that line. You’re also presumably familiar with its implication, which is that you’re more than likely hours out from speaking with a representative. And by “hours,” I mean anywhere from two to north of seven. In fact, back in May, Gary Leff of View From the Wing reported that some of Delta’s top frequent flyers were being asked to wait as long as41 hours. Delta is hardly the only offender, either …