When we got to the airport, it turned out that Expedia had canceled the wrong ticket. [...] I never received the promised refund. Two months later, I called Expedia again, and after two hours on the phone, was told again that I would be refunded within five business days. The company responded and told me the refund had been processed and to check with my bank. Expedia made a mistake, promised me a refund and has not delivered. Can you help me get my $1,640 back? [...] if you’d taken a minute to check on the correction — instead of waiting until you got to the airport — all this drama might have been avoided. Expedia, like all other online agencies, was created so that you can handle most transactions online. Even though it takes an online agency only a fraction of a second to take the money from your credit card, it can take two to three billing cycles for your money to actually appear. A review of your paper trail — the correspondence between you and Expedia — suggests that the company had no idea why your refund was being delayed. Christopher Elliott is the ombudsman for National Geographic Traveler magazine. Find travel tips at www.elliott.org.