I booked a United flight from DEN to SFO in late December. Immediately after booking (less than 5 minutes), I realized that my return trip was in first class. I wanted coach and didn't catch that. I canceled my flight, was charged a $100 change fee (my penalty for being stupid) and re-booked the ticket in coach both ways. The difference in fares (after the $100 fee) was $300.

I asked United to confirm that the $300 would be credited to my credit card--nope. They couldn't do that. They would have to send me a travel voucher. They could bill my card $100 immediately, but couldn't credit my $300. OK--fine.

In mid-February, I used their website to check on my credit--not available, call this number--which I did. They asked for a ticket number--I didn't have one. I went back to the web to look at my e-receipt. Wasn't available. I called an agent who redirected me to the number that asked for the ticket number. No option to speak with a live person.

In early March, I got fed up and sent an email to United with all of the pertinent details. Do you think that they responded (let alone got me the $300 that they owe me)?

So, bye-bye United. I travel 100,000 miles a year for business...looks like I'll be making Platinum on American from now on.