Q:

How to Integrate Apple Pay with Stripe in Xamarin.forms? 

i'm following that blog entrance, https://agileapp.co/Stripe-and-ApplePay-with-Xamarin-Forms/, that tells us how to integrate Stripe with Apple Pay using Xamarin Forms. 
I follow all code, and the only thing I changed is in PaymentButtonRenderer, CountryCode and CurrencyCode properties of PKPaymentRequest, set for use in Spain (ES and EUR), and of course, MerchantIdentifier as I set in apple developer portal. 
All things I have to do in Stripe are already done. 
As you can see in the images below, payment is not finished, and I don't know why.  I don't know where I have to set the pay using Stripe (var myCharge = new ChargeCreateOptions()....), maybe in PCL ViewModel, in PaymentWillAuthorize or PaymentDidAuthorize... but I have two breakpoints and PaymentDidAuthorize never breaks, only PaymentWillAuthorize , but I don't know how I have to code in these methods. 
Another extrange thing, is that if I use MerchantCapabilities as PKMerchantCapability. ThreeDS, I have an error message that tells that "Apple Pay is not available in my App", but if I change it to PKMerchantCapability. Debit, then the payment not finish. 
Could you tell me what is wrong?? 
Thanks

A:

Everything works fine, I just only create apple merchant certificate again, and code does what it have to do. 
Problem solved, thanks @karllekko

