http://www.groupon.com/pages/discover-card-terms
1.This Promotion starts 12:01 a.m. CDT on April 1, 2010 and ends at 11:59 p.m. CST on November 31, 2010 (the “Promotion Period”). Groupon reserves the right in its sole discretion to amend, suspend or terminate this Promotion at any time with or without notice.
2.This Promotion will apply only to purchases of Groupons for products and services in the following metropolitan markets (the “Markets”): Kansas City (Missouri), Columbus (Ohio), Chicago, Salt Lake City, Baltimore, District of Columbia, Cincinnati, Philadelphia, Louisville, Houston, Austin, Denver, Dallas, Minneapolis, St. Louis, Omaha, Oklahoma City, New Orleans and Pittsburgh.