Eligible UOB Mastercard card registration and offer activation is required prior to purchase by going to mtr.mastercardservices.com or www.priceless.com/travelrewards, registering card, and activating offer. Cash back is eligible for purchase of KRW 300000 or above. Valid for purchases made in KRW only. Offer is limited to three redemptions per cardholder during the promotion period. Cash back will be earned in-store only. Not valid for online purchases. If UOB Mastercard does not receive information that identifies your transaction as qualifying for the offer, you will not receive a statement credit. Statement credit may be reversed if qualifying purchase is returned/cancelled.