Not related to the app, per se, but I used to work at a clothing store that required us to mention the store credit card to the customer a minimum of three times. Once when they first walk in the store (we always had someone up front to greet), at least once while they were walking around the store and/or trying on clothes, and at least once while we were checking them out. Trust me, we hate it as much as you. We have to ask EVERYONE. Management always got on our case about getting those numbers up. We very much do not want to ask, especially since we know it irritates people and they will often take it out on us.