For some reason, my flight change registered in their system but did not charge my card. It kept saying "payment attempts exceeded". I was only able to notice this as a problem a day before my flight when attempting to check in. It kept giving me an error message, not letting me check into my flight. I called the customer service line only to be kept on hold for 3 hours. DO NOT PRESS 8 TO LET THEM CALL YOU BACK. They never will. After about 3 hours and 10 minutes, a representative picked up and fixed the situation for me. Just be patient! User's recommendation: Be patient and just leave your phone on hold for 3 to 4 hours. DO NOT PRESS 8 and DO NOT aggravate the representatives. Mine was very sweet even though she was clearly exhausted and annoyed.