To access the WSOP Michigan promo code, visit the official website and navigate to the promotions section. Locate the exclusive offer for Michigan players and make a note of the promo code provided. Enter the promo code during the registration process to unlock special bonuses and rewards. Ensure that you meet all terms and conditions associated with the promo code to fully benefit from the promotion. Stay updated on future promotions and bonus offers by subscribing to the WSOP mailing list.