title: On Stripe, how can I link existing credit card to new customer?
body: <p>I have a credit card on Stripe with id <code>card_XXXXXX</code> and I want to create a new Stripe customer and add this card to this customer.</p>
  
  <p>How can I do that?</p>
  
  <p>Thanks in advance.</p>
  
  <p>P.</p>