title: Swift Apple Pay with Stripe Error 50
body: <p>I have followed Stripe manual to implement Stripe in iOS project. We have the latest version and everything looks like in examples. Keep getting this error:</p>
  
  <blockquote>
    <p>Error Domain=com.stripe.lib Code=50 "Your payment information is formatted improperly. Please make sure you're correctly using the latest version of our iOS library. For more information see <a href="https://stripe.com/docs/mobile/ios" rel="nofollow">https://stripe.com/docs/mobile/ios</a>."</p>
  </blockquote>
  
  <p>Code is running in simulator, simulated as iPhone 6s and running latest iOS. Anyone got any clue?</p>