I think I'm grasping the intended purpose, but imo a sale is not very likely. I don't think banks/card issuers are going to invest a lot in non-critical domains. Although they would have to advertise it, then it would better be memorable.
And this domain doesn't seem to have been registered in the past, no history found. Which means in roughly two decades of Internet history nobody has ever wanted it, though of it. That may be surprising but seems to confirm there is simply no demand.