Wanting To know About Spoof Sites

Ok, I'm wanting to know more about spoof sites or bait and switch. Which means just making a quick website so that payment processors take a look and pass the account but I wanted to know a bit more about this from those doing it successfully.

Now let's say I wanted to sign up to Paypal, 2co, stripe, etc. To use a website I have, So I make a quick eCommerce for instance just to show these payment processors and they accept it.

With my other site where I really want the payments coming in would I need the prices to match by the cent on each of the websites or can there be a big difference between them is this something you think these payment processors look at?

Also would the payment processors not be able to pick up on what is happening quick as if the site makes an API call won't it pass the referring site as well which is the one you don't want them to see?

Maybe I'm overthinking this but this seems it would be easy for these processors to see and just ban accounts for any reasons like too high risk etc.