Automatic payment and receipt of goods via email. on LP. How to implement?

Hi all. Need a service for automatic payment of the goods and receipt of the product to buyer's email.
Here is the website.
Once the customer comes in fills out a form, it should automatically go to the form of payment. To pay the bill and get the book in PDF format to yourself by email. How to implement it? What services can I use?
July 8th 19 at 11:34

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