Here's what you can do, as stated by the U.S. Supreme Court in its recent case (Source:
http://www.supremecourt.gov/opinions...2-462_p8k0.pdf page 13)
Congress has given the Department of Transportation (DOT) the general authority to prohibit and punish unfair and deceptive practices in air transportation and in the sale of air transportation, 49 U.S.C. §41712(a) , and Congress has specifically authorized the DOT to investigate complaints relating to frequent flyer programs. See FAA Modernization and Reform Act of 2012, §408(6), 126 Stat. 87. Pursuant to these provisions, the DOT regularly entertains and acts on such complaints.
It is your duty to enter a complaint with the DOT at
http://airconsumer.ost.dot.gov/CP_AirlineService.htm. You can even quote this passage from the U.S. Supreme Court.