I'm attending a Second Life Shop & Hop event, and there are a few people who ask for a refund because of a purchase mistake. They say they bought it by mistake every time as a gift. However, it is clear at the time of purchase whether it is a gift or not, 0 Linden dollars or not. When we buy a product, the system asks us if we will pay that money. They are aware of it and are paying for it. Has anyone encountered such a case? Also, how do you deal with such a situation?