In March, I signed up for the Frontier Airlines Early Returns Mastercard program. On the brochure, including all of its fine print, it mentions that a round trip flight within the continental U.S. will be rewarded to new cardmembers who spend $500 in qualifying purchases within 90 days. Essentially, 20, 000 points would be rewarded to card members upon meeting these terms. I spent $500 (and then some) well within the time frame . To date, I have earned over 24, 000 points. The problem is that when I went to redeem my points I was told... read full review »