Some problems occurred when configuring web apple pay

I met some problems when using apple pay for the first time. I hope you can help me. Thank you

  1. Correctly configure and download various certificates according to the web apple pay process tutorial on the official website. Payment fails after payment request is initiated. Don't understand the reason for the failure.
  2. I didn't see how to set the card number of the merchant in the tutorial on the official website. Where did the money paid by the user go? Where can I set up a collection account?

Some problems occurred when configuring web apple pay
 
 
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