2012 Sponsorship Catalog Monthly Events Breakfast B4 Business Business After Hours Membership Luncheons New View, WDM Young Professionals Rush Hour Sponsorships may be purchased on a first-come/first-serve basis beginning at 8:00 AM on Tuesday, November 15, 2011. It is the policy of the West Des Moines Chamber of Commerce that all sponsorship sales are final upon completion of the transaction. No refunds will be administered.