It is a simple problem that every card issuer has. You have issued a credit or debit card to a new customer, so how do you get them to actually use it? More than that, how do you encourage this customer to make this new card their primary payment card.My next guest on the Fintech One-on-One podcast is Rory O'Reilly, the CEO and Co-Founder of Knot. He wrestled with that problem himself and decided to do something about it. His company has built API connectivity into most of the major merchants...