Play Console is the site where you send an app to the store. The address must be play.google.com/console. A similar form on another site should not ask you for money.
You need a Google account. When Console opens, the site shows a one-time payment. The amount is written on that page. The payment does not publish the app. It only opens the account.
After the payment it asks for a name, an address, and a contact. Sometimes it also asks for an identity. The app does not come out the moment the account opens. A signed APK, a privacy address, an icon, and phone pictures are still yours to add.