US Payment Service for App Store applications

Hello there, i am thinking to use my card and open US Payment Service to connect it with the App store for receiving payments for my apps.
Is this applicable with the US Payment Service?
Also in US Payment Service i saw that asks "Provide a direct web link to your online store or website"
But i don't have any. I want to upload an app in App Store and don't have any site about this.

How i can do that?
Please advice.

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